Discovery of brown dwarfs mining the 2MASS and SDSS databases

Discovery of brown dwarfs mining the 2MASS and SDSS databases#

F. Jiménez-Esteban¹, K. A. Lutz², E. Solano¹

Spanish Virtual Observatory
Université de Strasbourg, CNRS, Observatoire Astronomique de Strasbourg, UMR 7550, F-67000, Strasbourg, France

This tutorial is based on the EURO-VO tutorial of the same name: http://www.euro-vo.org/sites/default/files/documents/tutorial-brown-dwarfs_2019Apr.pdf .

Introduction#

Brown dwarfs are objects occupying the gap between the least massive stars and the most massive planets. They are intrinsically faint objects. Hence, heir detection is not straightforward and, in fact, was almost impossible until the advent of global surveys at deep optical and near-infrared bands like SDSS, 2MASS or DENIS. We propose here to mine the 2MASS point source catalogue (2MASS-PSC) and SDSS-DR9 databases to identify T-type brown dwarfs through an appropriate combination of colors in the optical and the infrared, an approach that perfectly fits into the Virtual Observatory.

In this use case, we explore different ways to do the same tasks with different VO tools. These tasks include:

obtaining data from the SDSS and 2MASS catalogues in a given sky region,
crossmatching the results of these searches,
filtering the resulting table for brown dwarfs, and
verifying our sample of brown dwarfs.

Software packages needed for this tutorial are Aladin, TOPCAT, STILTS and Python (or you may just use the Binder in your web browser).

# Standard Library
from pathlib import Path

# Astronomy tools
from astropy import units as u
from astropy.coordinates import SkyCoord

# Access astronomical databases
import pyvo
from astroquery.simbad import Simbad
from astroquery.vizier import Vizier
from astroquery.xmatch import XMatch

# Sky visualization
from ipyaladin import Aladin

Step #1: Discovery#

We start by searching for the 2MASS point source catalogue (2MASS-PSC) and the SDSS data release 9 catalogue (SDSS DR9). To find and query catalogues, there are two packages we can use: pyVO and astroquery. We will show pyVO for searching the 2MASS-PSC and astroquery for SDSS DR9.

With the pyVo package we are using the TAP service of VizieR. TAP is a Virtual Observatory protocol to query databases of tables. The language we use to compile the query is called ADQL and is similar to SQL. For more details on ADQL see also the dedicated VO tutorial (http://docs.g-vo.org/adql-gaia/html/).

tap_vizier = pyvo.dal.TAPService("https://tapvizier.cds.unistra.fr/TAPVizieR/tap")

query = """
SELECT  * 
FROM tables
WHERE description LIKE '%2MASS%Cutri%'
"""

mass_psc_set = tap_vizier.search(query).to_table()
mass_psc_set["table_name", "description"]

Table length=13

table_name	description
object	object
J/ApJ/569/23/table1	Optical polarimetry of 2MASS Red QSOs ( Smith P.S., Schmidt G.D., Hines D.C., Cutri R.M., Nelson B.O.)
II/281/2mass6x	2MASS-6X catalog ( Cutri R.M., Skrutskie M.F., Van Dyk S., et al.)
J/ApJ/780/92/2mass	2MASS JHKs photometry (table5) ( Szabo R., Ivezic Z., Kiss L.L., Kollath Z., Jones L., Sesar B., Becker A.C., Davenport J.R.A., Cutri R.M.)
II/246/out	2MASS Point Source Catalogue, output (on a total of 470,992,970 sources) ( Cutri R.M., Skrutskie M.F., Van Dyk S., et al.)
J/ApJ/564/421/table3	2MASS IDR2 Sources Unconfirmed in Second Epoch Imaging ( Burgasser A.J., Kirkpatrick J.D., Brown M.E., Reid I.N., Burrows A., Liebert J., Matthews K., Gizis J.E., Dahn C.C., Monet D.G., Cutri R.M., Skrutskie M.F.)
VII/233/xsc	*The 2MASS Extended Catalog (2MASX) ( Skrutskie M.F., Cutri R.M., Stiening R., et al.)
II/241/out	2MASS Point Source Catalogue, 2MASS 2000 Second Incremental Release ( Skrutskie M.F., Schneider S.E., Stiening R., Strom S.E., Weinberg M.D., Beichman C., Chester T., Cutri R., Lonsdale C., Elias J., Elston R., Capps R., Carpenter J., Huchra J., Liebert J., Monet D., Price S., Seitzer P.)
J/ApJ/569/23/table3	Galactic interstellar polarization detected in the fields of 2MASS AGNs ( Smith P.S., Schmidt G.D., Hines D.C., Cutri R.M., Nelson B.O.)
J/ApJ/569/23/table2	Optical polarimetry of other AGN found by 2MASS ( Smith P.S., Schmidt G.D., Hines D.C., Cutri R.M., Nelson B.O.)
J/AJ/126/63/table1	2MASS sample and measurements ( Hutchings J.B., Maddox N., Cutri R.M., Nelson B.O.)
J/ApJS/190/100/table1	List of 2MASS proper motion candidates ( Kirkpatrick J.D., Looper D.L., Burgasser A.J., Schurr S.D., Cutri R.M., Cushing M.C., Cruz K.L., Sweet A.C., Knapp G.R., Barman T.S., Bochanski J.J., Roellig T.L., McLean I.S., McGovern M.R., Rice E.L.)
J/ApJ/564/421/table5	Comparison of NIRC Spectrophotometric colors to 2MASS photometry ( Burgasser A.J., Kirkpatrick J.D., Brown M.E., Reid I.N., Burrows A., Liebert J., Matthews K., Gizis J.E., Dahn C.C., Monet D.G., Cutri R.M., Skrutskie M.F.)
J/ApJ/564/421/table6	New T Dwarfs Identified in the 2MASS Catalog ( Burgasser A.J., Kirkpatrick J.D., Brown M.E., Reid I.N., Burrows A., Liebert J., Matthews K., Gizis J.E., Dahn C.C., Monet D.G., Cutri R.M., Skrutskie M.F.)

As mentioned above we are interested in the 2MASS-pSC, which has the table_name II/246/out in VizieR. Before we move on to construct a more complicated query, we have a quick look at the 2MASS-PSC table and all the available columns. We do so by downloading the first 5 rows:

query = 'SELECT TOP 5 * FROM "II/246/out" '
mass_psc_head = tap_vizier.search(query).to_table()
mass_psc_head

Table length=5

RAJ2000	DEJ2000	errMaj	errMin	errPA	2MASS	Jmag	Jcmsig	e_Jmag	Jsnr	Hmag	Hcmsig	e_Hmag	Hsnr	Kmag	Kcmsig	e_Kmag	Ksnr	Qflg	Rflg	Bflg	Cflg	Ndet	prox	pxPA	pxCntr	Xflg	Aflg	Cntr	Hemis	Date	Scan	GLON	GLAT	Xscan	JD	Jpsfchi	Hpsfchi	Kpsfchi	Jstdap	e_Jstdap	Hstdap	e_Hstdap	Kstdap	e_Kstdap	edgeNS	edgeEW	edge	dup	use	opt	Dopt	PAopt	Bmag	Rmag	Nopt	extKey	scanKey	coaddKey	coadd
deg	deg	arcsec	arcsec	deg		mag	mag	mag		mag	mag	mag		mag	mag	mag							arcsec	deg								deg	deg	arcsec	d				mag	mag	mag	mag	mag	mag	arcsec	arcsec					arcsec	deg	mag	mag
float64	float64	float32	float32	int16	object	float32	float32	float32	float64	float32	float32	float32	float64	float32	float32	float32	float64	object	object	object	object	object	float32	int16	int64	int16	int16	int64	str1	object	int16	float32	float32	float32	float64	float32	float32	float32	float32	float32	float32	float32	float32	float32	int32	int16	object	int16	int16	str1	float32	int16	float32	float32	int16	int32	int32	int32	int16
44.996055	0.005565	0.17	0.16	76	02595905+0000200	16.376	0.097	0.097	11.3	15.77	0.139	0.14	8.2	15.258	0.141	0.141	7.6	ABB	222	111	000	060606	44.5	230	1290669337	0	0	1290669325	s	1998-09-28	112	176.951	-48.902	-138.9	2451084.8062	0.75	1.21	1.13	16.651	0.221	15.434	0.134	15.478	0.434	521	114	ne	1	1	U	0.7	156	17.9	16.9	1	--	69347	1594959	9
45.004857	0.019806	0.06	0.06	90	03000116+0001113	12.529	0.021	0.024	389.8	11.954	0.029	0.03	273.7	11.874	0.027	0.029	172.5	AAA	222	111	000	666666	4.8	330	1290669298	0	0	1290669300	s	1998-09-28	112	176.945	-48.885	-170.6	2451084.8062	1.15	1.31	1.97	12.508	0.019	11.91	0.025	11.852	0.008	469	82	ne	1	1	U	1.5	72	15.0	13.8	1	--	69347	1594959	9
45.004193	0.020956	0.06	0.06	90	03000100+0001154	14.845	0.055	0.056	46.2	14.223	0.077	0.077	33.9	14.016	0.055	0.055	24.0	AAA	222	111	ccc	666666	4.8	150	1290669300	0	0	1290669298	s	1998-09-28	112	176.943	-48.885	-168.2	2451084.8062	0.86	0.89	1.11	13.889	0.101	13.035	0.126	12.97	0.043	465	84	ne	1	1	0	--	--	--	--	0	--	69347	1594959	9
44.995074	0.038204	0.38	0.31	0	02595881+0002175	16.746	0.133	0.134	8.0	15.814	0.139	0.14	7.8	16.125	0.324	0.324	3.4	BBD	222	111	000	060606	70.2	152	1290669298	0	0	1290669276	s	1998-09-28	112	176.914	-48.88	-135.4	2451084.8062	1.22	0.84	0.69	17.047	0.414	15.5	0.229	17.513	1.964	403	117	ne	0	1	0	--	--	--	--	0	--	69347	1594959	9
44.963851	0.043587	0.22	0.17	95	02595132+0002369	16.476	0.112	0.113	10.3	16.057	0.175	0.175	6.3	15.564	--	--	--	BCU	220	110	000	060600	89.4	207	1290669295	0	0	1290669271	s	1998-09-28	112	176.875	-48.898	-23.0	2451084.8062	1.13	1.07	--	17.113	0.34	18.739	3.527	--	--	384	229	ne	1	1	U	0.4	161	18.7	17.7	1	--	69347	1594959	9

As in the original tutorial, we only want to get data within a 14arcmin radius of RA=08h30m00s, Dec=01d30m00s. ADQL has a function, which allows to run an astronomical cone search query. From the quick inital inspection of the table we now know that we will need the columns RAJ2000 and DEJ2000 to only get sources at a certain location. Since we want to get colours for our Brown Dwarf candidates, we will also want to get the Jmag, Hmag and Kmag columns. For a different analysis you might want to choose other columns.

coord = SkyCoord(ra="08:30:00", dec="01:30:00", unit=(u.hourangle, u.deg))

query = """
SELECT * 
FROM \"II/246/out\" as tm_psc 
WHERE 1=CONTAINS(POINT(\'ICRS\', tm_psc.RAJ2000, tm_psc.DEJ2000),
                 CIRCLE(\'ICRS\', {:.3f}, {:.3f}, 14/60))
""".format(
    coord.ra.value,
    coord.dec.value,
)

mass_psc = tap_vizier.search(query).to_table()
mass_psc

Table length=683

RAJ2000	DEJ2000	errMaj	errMin	errPA	2MASS	Jmag	Jcmsig	e_Jmag	Jsnr	Hmag	Hcmsig	e_Hmag	Hsnr	Kmag	Kcmsig	e_Kmag	Ksnr	Qflg	Rflg	Bflg	Cflg	Ndet	prox	pxPA	pxCntr	Xflg	Aflg	Cntr	Hemis	Date	Scan	GLON	GLAT	Xscan	JD	Jpsfchi	Hpsfchi	Kpsfchi	Jstdap	e_Jstdap	Hstdap	e_Hstdap	Kstdap	e_Kstdap	edgeNS	edgeEW	edge	dup	use	opt	Dopt	PAopt	Bmag	Rmag	Nopt	extKey	scanKey	coaddKey	coadd
deg	deg	arcsec	arcsec	deg		mag	mag	mag		mag	mag	mag		mag	mag	mag							arcsec	deg								deg	deg	arcsec	d				mag	mag	mag	mag	mag	mag	arcsec	arcsec					arcsec	deg	mag	mag
float64	float64	float32	float32	int16	object	float32	float32	float32	float64	float32	float32	float32	float64	float32	float32	float32	float64	object	object	object	object	object	float32	int16	int64	int16	int16	int64	str1	object	int16	float32	float32	float32	float64	float32	float32	float32	float32	float32	float32	float32	float32	float32	int32	int16	object	int16	int16	str1	float32	int16	float32	float32	int16	int32	int32	int32	int16
127.509154	1.269173	0.2	0.15	87	08300219+0116090	15.963	0.095	0.096	12.5	15.546	0.121	0.122	9.0	14.93	0.144	0.144	8.1	ABB	222	111	000	160606	14.2	340	804040589	0	0	804040599	s	2000-01-30	58	223.554	22.408	178.5	2451573.6815	0.89	1.01	0.92	15.939	0.235	15.899	0.319	14.69	0.124	4589	74	sw	0	1	0	--	--	--	--	0	--	43956	1010984	221
127.507779	1.272875	0.12	0.11	86	08300186+0116223	15.594	0.083	0.084	17.6	15.563	0.117	0.117	8.9	15.272	0.181	0.182	5.9	ABC	222	111	000	360606	14.2	160	804040599	0	0	804040589	s	2000-01-30	58	223.55	22.408	183.4	2451573.6814	1.64	0.82	1.47	15.432	0.153	15.81	0.424	14.992	0.114	4602	69	sw	0	1	U	0.2	270	17.1	16.5	1	--	43956	1010984	221
127.514167	1.277495	0.23	0.21	51	08300340+0116389	16.553	0.17	0.171	7.3	16.179	0.194	0.194	5.0	15.894	--	--	--	CCU	220	110	000	060600	28.4	234	804040589	0	0	804040577	s	2000-01-30	58	223.549	22.416	160.4	2451573.6814	0.69	1.58	--	16.335	0.139	18.014	3.36	--	--	4619	92	sw	0	1	U	0.0	13	18.0	17.3	1	--	43956	1010984	221
127.463251	1.271903	0.07	0.07	0	08295118+0116188	15.844	0.076	0.077	14.0	15.11	0.095	0.096	13.5	15.029	0.138	0.138	7.4	AAB	222	111	000	260606	41.0	160	804019559	0	0	804019587	s	2000-01-30	57	223.528	22.369	-87.9	2451573.6739	1.78	0.8	1.14	15.935	0.238	15.077	0.164	15.197	0.438	4593	164	se	0	1	U	1.0	281	20.0	18.4	1	--	43955	1010947	56
127.463023	1.2864	0.06	0.06	0	08295112+0117110	14.093	0.029	0.032	70.0	13.652	0.033	0.035	51.7	13.553	0.042	0.043	28.9	AAA	222	111	000	666635	52.2	179	804019587	0	0	804019616	s	2000-01-30	57	223.514	22.376	-87.0	2451573.674	0.75	0.97	0.91	14.077	0.023	13.576	0.05	13.692	0.14	4646	165	se	0	1	U	0.4	160	16.3	14.6	1	--	43955	1010947	56
127.48465	1.271192	0.06	0.06	0	08295631+0116162	13.848	0.026	0.029	87.8	13.177	0.02	0.022	80.0	12.932	0.023	0.024	51.1	AAA	222	111	000	666655	15.7	12	804019600	0	0	804019585	s	2000-01-30	57	223.54	22.387	-164.9	2451573.6739	0.88	0.87	0.95	13.813	0.042	13.143	0.051	13.009	0.056	4591	87	se	0	1	U	0.2	244	18.8	16.7	1	--	43955	1010947	56
127.485565	1.275456	0.2	0.17	4	08295653+0116316	16.26	0.112	0.112	9.5	15.908	0.172	0.172	6.5	15.264	0.184	0.184	6.0	BCC	222	111	000	160606	15.7	192	804019585	0	0	804019600	s	2000-01-30	57	223.536	22.39	-168.2	2451573.674	0.84	1.3	0.8	16.125	0.291	15.529	0.253	15.21	0.246	4606	84	se	0	1	U	0.4	232	18.1	17.4	1	--	43955	1010947	56
127.494339	1.280734	0.15	0.15	145	08295864+0116506	16.317	0.119	0.12	9.0	15.818	0.141	0.141	7.0	15.099	--	--	--	BBU	220	110	000	060600	36.9	239	804019600	0	0	804019605	s	2000-01-30	57	223.536	22.4	-199.8	2451573.674	0.96	1.62	--	16.264	0.088	16.219	0.553	--	--	4625	52	se	1	1	0	--	--	--	--	0	--	43955	1010947	56
127.494645	1.296204	0.07	0.07	17	08295871+0117463	15.25	0.05	0.051	24.1	15.062	0.077	0.078	14.1	14.87	0.114	0.114	8.6	AAB	222	111	000	660506	47.1	299	804019652	0	0	804019639	s	2000-01-30	57	223.521	22.408	-200.9	2451573.674	0.98	0.89	1.01	15.178	0.064	15.195	0.302	14.779	0.326	4681	51	se	1	1	U	0.4	185	16.8	16.1	1	--	43955	1010947	56
127.483247	1.302628	0.06	0.06	0	08295597+0118094	13.484	0.025	0.027	122.7	12.862	0.02	0.022	106.9	12.807	0.033	0.034	57.4	AAA	222	111	000	665555	27.9	314	804019667	0	0	804019652	s	2000-01-30	57	223.509	22.401	-159.8	2451573.674	1.06	0.7	1.1	13.457	0.027	12.875	0.06	12.777	0.069	4704	92	se	0	1	U	2.0	195	16.3	14.5	1	--	43955	1010947	56
127.40852	1.286066	0.06	0.06	0	08293804+0117098	13.936	0.031	0.033	80.9	13.296	0.032	0.033	71.7	13.117	0.029	0.03	43.1	AAA	222	111	000	666666	25.9	57	804019624	0	0	804019615	s	2000-01-30	57	223.486	22.328	109.1	2451573.674	1.01	0.95	1.1	13.927	0.03	13.241	0.045	13.122	0.059	4645	144	sw	0	1	U	0.6	234	17.2	15.7	1	--	43955	1010947	56
127.414546	1.289993	0.06	0.06	0	08293949+0117239	14.666	0.032	0.034	41.3	14.264	0.043	0.044	29.4	14.223	0.065	0.066	15.6	AAA	222	111	000	664616	23.6	13	804019640	0	0	804019624	s	2000-01-30	57	223.485	22.335	87.4	2451573.674	1.4	0.77	1.15	14.729	0.04	14.389	0.118	14.418	0.225	4659	165	sw	0	1	U	0.4	205	16.3	15.3	1	--	43955	1010947	56
127.398036	1.299818	0.21	0.18	86	08293552+0117593	16.006	0.091	0.092	12.0	15.514	0.124	0.124	9.3	15.203	0.145	0.145	6.3	ABC	222	111	000	061606	45.2	1	804019675	0	0	804019645	s	2000-01-30	57	223.467	22.325	146.9	2451573.674	0.76	1.57	1.08	16.174	0.093	15.085	0.291	15.687	0.376	4695	106	sw	0	1	U	0.8	255	18.0	17.1	1	--	43955	1010947	56
127.477715	1.308056	0.06	0.06	0	08295465+0118290	14.569	0.033	0.036	45.2	13.969	0.038	0.039	38.6	13.678	0.045	0.045	25.7	AAA	222	111	000	456656	27.9	134	804019652	0	0	804019667	s	2000-01-30	57	223.501	22.399	-139.9	2451573.674	1.11	1.15	1.39	13.278	1.852	13.986	0.063	13.792	0.117	4723	112	se	0	1	U	1.8	224	19.7	17.4	1	--	43955	1010947	56
127.46831	1.31075	0.12	0.11	9	08295239+0118387	16.062	0.091	0.092	11.4	15.293	0.093	0.094	11.4	15.237	--	--	--	AAU	220	110	000	060600	6.9	346	804019676	0	0	804019672	s	2000-01-30	57	223.494	22.392	-106.1	2451573.674	1.38	1.13	--	16.091	0.214	15.497	0.178	--	--	4733	146	se	0	1	U	0.4	254	18.0	17.0	1	--	43955	1010947	56
127.467857	1.3126	0.14	0.13	88	08295228+0118453	16.272	0.106	0.107	9.4	15.335	0.123	0.123	11.0	15.21	0.17	0.171	6.3	BBC	222	111	000	060606	6.9	166	804019672	0	0	804019676	s	2000-01-30	57	223.492	22.393	-104.4	2451573.674	1.14	0.94	0.97	16.225	0.162	15.219	0.157	15.68	0.654	4740	148	se	0	1	U	0.5	234	19.2	17.9	1	--	43955	1010947	56
127.459955	1.321278	0.07	0.07	17	08295038+0119166	15.254	0.058	0.059	24.0	15.065	0.085	0.086	14.1	14.92	0.127	0.128	8.2	AAB	222	111	000	660606	42.2	138	804019676	0	0	804019689	s	2000-01-30	57	223.479	22.39	-76.0	2451573.674	1.18	1.23	1.0	15.108	0.099	15.093	0.208	14.956	0.186	4771	176	se	0	1	U	0.5	216	16.9	16.2	1	--	43955	1010947	56
127.416013	1.296385	0.06	0.06	17	08293984+0117469	14.667	0.039	0.041	41.3	14.285	0.054	0.055	28.8	14.226	0.082	0.082	15.5	AAA	222	111	000	664605	17.6	316	804019646	0	0	804019640	s	2000-01-30	57	223.48	22.339	82.2	2451573.674	1.08	1.17	1.02	14.722	0.028	14.294	0.107	14.331	0.133	4682	171	sw	0	1	U	0.2	259	16.3	15.3	1	--	43955	1010947	56
127.429505	1.300463	0.08	0.08	0	08294308+0118016	15.482	0.058	0.059	19.5	14.972	0.062	0.062	15.3	15.06	0.126	0.127	7.2	AAB	222	111	000	360605	50.7	253	804019640	0	0	804019647	s	2000-01-30	57	223.483	22.353	33.6	2451573.674	1.04	1.09	1.12	15.522	0.122	15.222	0.122	15.177	0.3	4697	219	sw	0	1	U	0.6	224	17.6	16.4	1	--	43955	1010947	56
127.412629	1.299927	0.07	0.06	4	08293903+0117597	15.483	0.06	0.061	19.5	14.848	0.077	0.078	17.2	14.62	0.1	0.1	10.8	AAA	222	111	000	362616	17.6	136	804019640	0	0	804019646	s	2000-01-30	57	223.475	22.338	94.3	2451573.674	0.8	1.08	1.04	15.382	0.09	14.712	0.175	14.508	0.246	4695	158	sw	0	1	0	--	--	--	--	0	--	43955	1010947	56
127.422784	1.315596	0.08	0.08	163	08294146+0118561	15.931	0.086	0.087	12.9	15.324	0.094	0.095	11.1	15.587	0.226	0.226	4.4	AAD	222	111	000	060606	24.8	322	804019688	0	0	804019682	s	2000-01-30	57	223.465	22.355	57.8	2451573.674	1.24	0.91	1.03	16.191	0.171	15.908	0.388	16.012	0.523	4751	195	sw	0	1	U	0.4	218	17.8	16.8	1	--	43955	1010947	56
127.418538	1.321024	0.07	0.07	0	08294044+0119156	15.265	0.056	0.057	23.8	14.87	0.082	0.082	16.8	14.747	0.106	0.106	9.6	AAB	222	111	000	561616	21.0	346	804019698	0	0	804019688	s	2000-01-30	57	223.458	22.354	73.1	2451573.674	1.06	0.7	0.66	15.156	0.11	14.76	0.112	14.477	0.17	4771	180	sw	0	1	U	0.5	205	16.9	16.1	1	--	43955	1010947	56
127.444601	1.320708	0.08	0.08	17	08294670+0119145	15.47	0.059	0.06	19.7	14.884	0.08	0.08	16.6	15.177	0.164	0.164	6.5	AAC	222	111	000	360505	55.3	357	804019721	0	0	804019686	s	2000-01-30	57	223.472	22.376	-20.7	2451573.674	0.88	1.09	0.97	15.46	0.155	14.897	0.172	15.495	0.289	4769	231	se	0	1	U	1.3	168	17.1	16.0	1	--	43955	1010947	56
127.443833	1.336041	0.08	0.08	17	08294651+0120097	15.739	0.077	0.078	15.4	14.99	0.09	0.09	15.1	15.115	0.143	0.143	6.9	AAC	222	111	000	260616	45.9	334	804019748	0	0	804019721	s	2000-01-30	57	223.457	22.383	-18.0	2451573.674	0.67	0.72	1.62	15.664	0.134	14.935	0.114	15.21	0.537	4825	234	se	0	1	U	0.3	159	19.6	17.9	1	--	43955	1010947	56
127.551124	1.274191	0.2	0.19	32	08301226+0116270	16.523	0.138	0.139	7.5	15.978	0.178	0.178	6.1	15.626	--	--	--	BCU	220	110	000	060600	53.1	132	804040612	0	0	804040583	s	2000-01-30	58	223.572	22.447	27.4	2451573.6814	0.86	1.1	--	17.253	0.528	15.72	0.401	--	--	4606	225	sw	0	1	U	0.5	205	18.2	17.3	1	--	43956	1010984	221
127.562524	1.284466	0.24	0.23	15	08301500+0117040	16.738	0.167	0.167	6.1	15.513	0.136	0.136	9.3	15.487	0.254	0.254	4.9	CBD	222	111	000	060606	55.2	228	804040583	0	0	804040560	s	2000-01-30	58	223.568	22.462	-13.6	2451573.6814	0.98	0.8	0.97	16.359	0.225	15.246	0.216	15.222	0.457	4643	238	se	0	1	U	0.3	317	19.4	18.0	1	--	43956	1010984	221
127.631018	1.313059	0.09	0.06	90	08303144+0118470	12.95	0.025	0.027	193.8	12.453	0.022	0.024	145.5	12.367	0.021	0.023	86.0	AAA	222	111	000	556666	23.2	308	804046284	0	0	804046275	s	2000-01-30	59	223.577	22.536	173.5	2451573.6837	0.87	0.73	1.14	12.957	0.009	12.482	0.036	12.416	0.03	4743	79	sw	0	1	U	0.4	216	15.5	13.9	1	--	43957	1010993	56
127.608273	1.305259	0.07	0.06	90	08302598+0118189	14.88	0.035	0.037	33.9	14.5	0.048	0.049	23.7	14.404	0.079	0.08	13.2	AAA	222	111	000	663606	50.4	335	804040490	0	0	804040515	s	2000-01-30	58	223.572	22.512	-178.3	2451573.6814	0.91	1.27	0.77	14.809	0.075	14.467	0.125	14.553	0.117	4718	74	se	0	1	U	0.2	208	16.6	15.7	1	--	43956	1010983	209
127.602283	1.317923	0.07	0.06	90	08302454+0119045	12.983	0.023	0.026	194.6	12.679	0.021	0.023	126.6	12.677	0.024	0.026	64.7	AAA	222	111	00s	665566	47.1	14	804040463	0	0	804040490	s	2000-01-30	58	223.557	22.513	-156.7	2451573.6814	0.86	0.68	1.02	12.965	0.024	12.726	0.059	12.712	0.033	4763	95	se	0	1	U	0.2	257	14.8	13.8	1	--	43956	1010983	209
127.625964	1.317053	0.1	0.07	89	08303023+0119013	15.032	0.053	0.055	28.5	14.667	0.058	0.058	18.9	14.747	0.114	0.115	9.6	AAB	222	111	000	662606	23.2	128	804046275	0	0	804046284	s	2000-01-30	59	223.57	22.533	191.7	2451573.6837	0.81	1.05	1.06	15.007	0.051	14.672	0.118	14.601	0.18	4758	61	sw	1	1	U	0.5	222	16.5	15.8	1	--	43957	1010993	56
127.632868	1.320028	0.09	0.06	90	08303188+0119121	14.089	0.031	0.033	67.9	13.45	0.027	0.029	58.1	13.164	0.037	0.038	41.3	AAA	222	111	000	666666	26.0	195	804046275	0	0	804046292	s	2000-01-30	59	223.571	22.541	166.9	2451573.6837	0.96	1.06	1.16	14.081	0.025	13.436	0.051	13.136	0.074	4768	86	sw	0	1	U	0.2	285	18.8	16.8	1	--	43957	1010993	56
127.605526	1.330598	0.08	0.07	83	08302532+0119501	15.385	0.047	0.049	21.3	14.711	0.069	0.069	19.5	14.738	0.126	0.127	9.7	AAB	222	111	000	463616	47.1	194	804040490	0	0	804040463	s	2000-01-30	58	223.547	22.522	-168.4	2451573.6814	0.89	0.84	1.07	15.485	0.113	14.627	0.083	14.693	0.39	4809	84	se	0	1	U	0.9	146	19.8	18.2	1	--	43956	1010983	209
127.629259	1.333658	0.13	0.13	109	08303102+0120011	15.936	0.096	0.097	12.4	15.501	0.109	0.109	8.8	15.314	0.186	0.186	5.7	ABC	222	111	000	060606	11.0	11	804046324	0	0	804046318	s	2000-01-30	59	223.556	22.544	179.8	2451573.6837	1.1	0.82	1.06	15.804	0.184	15.783	0.331	15.466	0.36	4817	73	sw	0	1	U	0.3	174	17.6	16.6	1	--	43957	1010993	56
127.647894	1.347275	0.08	0.06	88	08303549+0120501	13.56	0.026	0.029	110.5	13.149	0.029	0.03	76.6	13.062	0.034	0.035	45.4	AAA	222	111	000	666655	29.2	66	804046366	0	0	804046354	s	2000-01-30	59	223.553	22.567	112.8	2451573.6837	0.94	0.73	0.97	13.574	0.037	13.149	0.064	13.027	0.044	4866	140	sw	0	1	U	0.4	270	15.5	14.4	1	--	43957	1010993	56
127.629856	1.336659	0.09	0.07	88	08303116+0120119	15.624	0.075	0.076	16.5	15.116	0.078	0.078	12.5	14.845	0.124	0.124	8.8	AAB	222	111	000	360606	11.0	191	804046318	0	0	804046324	s	2000-01-30	59	223.554	22.546	177.7	2451573.6837	0.68	1.11	1.42	15.536	0.113	15.248	0.158	15.116	0.077	4828	75	sw	0	1	U	0.0	257	17.6	16.7	1	--	43957	1010993	56
127.641134	1.354178	0.08	0.06	90	08303387+0121150	14.449	0.035	0.037	48.7	13.844	0.024	0.026	40.4	13.495	0.045	0.045	30.4	AAA	222	111	000	666666	27.6	343	804046390	0	0	804046376	s	2000-01-30	59	223.543	22.564	137.1	2451573.6837	1.07	1.29	0.97	14.423	0.032	13.864	0.07	13.529	0.06	4891	116	sw	0	1	U	1.2	264	18.9	16.8	1	--	43957	1010994	68
127.659372	1.344964	0.1	0.08	90	08303824+0120418	15.722	0.069	0.07	15.1	15.19	0.098	0.099	11.7	15.191	0.169	0.169	6.4	AAC	222	111	000	160606	24.7	324	804046366	0	0	804046346	s	2000-01-30	59	223.561	22.576	71.5	2451573.6837	1.17	0.97	1.11	15.707	0.12	15.087	0.098	15.275	0.337	4858	181	sw	0	1	U	0.3	190	17.6	16.5	1	--	43957	1010993	56
127.665886	1.349635	0.08	0.06	90	08303981+0120586	9.368	0.023	0.026	5250.9	8.8	0.063	0.065	4206.4	8.761	0.019	0.021	2382.4	AAA	212	111	000	446666	28.9	234	804046346	0	0	804046361	s	2000-01-30	59	223.56	22.584	48.0	2451573.6837	0.75	0.74	0.6	9.362	0.01	8.88	0.05	8.745	0.012	4875	205	sw	0	1	T	0.3	24	11.62	10.83	2	--	43957	1010994	68
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
127.630358	1.659714	0.07	0.06	83	08303128+0139349	14.002	0.033	0.036	73.6	13.784	0.042	0.043	42.7	13.709	0.049	0.05	25.0	AAA	222	111	000	666666	12.5	9	804047077	0	0	804047071	s	2000-01-30	59	223.248	22.703	175.9	2451573.6839	1.09	0.73	1.12	13.965	0.02	13.762	0.031	13.734	0.082	5991	77	sw	0	1	U	0.2	210	15.1	14.5	1	--	43957	1010995	80
127.630877	1.663142	0.13	0.11	179	08303141+0139473	15.903	0.097	0.098	12.8	15.514	0.124	0.125	8.7	15.56	0.22	0.22	4.5	ABD	222	111	000	060606	12.5	189	804047071	0	0	804047077	s	2000-01-30	59	223.245	22.705	174.0	2451573.6839	0.94	1.08	1.41	15.665	0.098	15.509	0.141	15.8	0.593	6004	79	sw	0	1	U	0.8	143	17.3	16.7	1	--	43957	1010995	80
127.608503	1.657705	0.06	0.06	90	08302604+0139277	13.408	0.023	0.026	131.6	12.912	0.026	0.027	102.1	12.756	0.03	0.031	60.1	AAA	222	111	000	666666	56.4	309	804039681	0	0	804039702	s	2000-01-30	58	223.238	22.682	-179.1	2451573.6812	1.11	1.0	1.03	13.392	0.019	12.891	0.042	12.723	0.036	5986	73	se	0	1	U	0.1	224	15.9	14.4	1	--	43956	1010982	198
127.61793	1.670363	0.06	0.06	90	08302830+0140133	12.331	0.021	0.024	354.8	11.852	0.021	0.023	271.1	11.776	0.022	0.024	148.3	AAA	222	111	000	665566	48.7	97	804047087	0	0	804039676	s	2000-01-30	58	223.231	22.697	-213.0	2451573.6812	0.97	0.85	0.87	12.325	0.015	11.863	0.052	11.795	0.02	6032	39	se	1	1	U	1.0	197	14.7	13.2	1	--	43956	1010982	198
127.631377	1.668806	0.06	0.06	90	08303153+0140077	14.417	0.037	0.039	50.2	14.078	0.048	0.049	32.6	14.041	0.059	0.059	18.4	AAA	222	111	000	666636	20.5	185	804047077	0	0	804047087	s	2000-01-30	59	223.239	22.708	172.2	2451573.6839	0.89	0.69	1.07	14.356	0.027	14.077	0.054	14.032	0.1	6024	80	sw	0	1	U	0.1	320	15.9	15.1	1	--	43957	1010995	80
127.59634	1.667581	0.11	0.11	45	08302312+0140032	15.932	0.079	0.08	12.9	15.564	0.129	0.129	8.9	15.494	0.207	0.207	4.8	ABD	222	111	000	260605	56.4	129	804039702	0	0	804039681	s	2000-01-30	58	223.222	22.677	-135.3	2451573.6812	1.42	0.89	0.99	15.856	0.152	15.713	0.139	15.256	0.593	6022	117	se	0	1	U	0.4	231	17.2	16.6	1	--	43956	1010982	198
127.607412	1.680264	0.07	0.07	45	08302577+0140489	15.187	0.045	0.047	25.6	14.768	0.052	0.052	18.5	14.635	0.105	0.105	10.7	AAA	222	111	000	462606	19.3	341	804039639	0	0	804039656	s	2000-01-30	58	223.216	22.692	-175.1	2451573.6811	0.84	0.99	0.66	15.267	0.083	14.939	0.139	14.272	0.074	6068	77	se	0	1	U	0.4	196	17.2	16.2	1	--	43956	1010982	198
127.605675	1.685328	0.07	0.06	4	08302536+0141071	15.208	0.04	0.042	25.1	14.614	0.05	0.051	21.3	14.529	0.082	0.083	11.7	AAA	222	111	000	562615	19.3	161	804039656	0	0	804039639	s	2000-01-30	58	223.21	22.693	-168.9	2451573.6811	1.23	0.93	0.6	15.238	0.074	14.743	0.124	14.394	0.152	6086	83	se	0	1	U	1.0	201	17.0	16.1	1	--	43956	1010982	198
127.59557	1.693948	0.24	0.21	14	08302293+0141382	16.451	0.144	0.144	8.0	15.841	0.166	0.166	6.9	15.403	0.221	0.221	5.3	BCD	222	111	000	160506	47.8	130	804039639	0	0	804039617	s	2000-01-30	58	223.197	22.689	-132.5	2451573.6811	1.16	1.11	0.98	16.066	0.3	15.271	0.191	14.673	0.14	6117	120	se	0	1	U	0.5	306	18.5	16.9	1	--	43956	1010982	198
127.612403	1.684011	0.07	0.06	86	08302697+0141024	14.826	0.049	0.05	35.7	14.37	0.071	0.072	26.7	14.421	0.09	0.09	13.0	AAA	222	111	000	665526	3.4	355	804047124	0	0	804039648	s	2000-01-30	58	223.215	22.699	-193.1	2451573.6811	4.16	2.34	2.12	14.585	0.042	14.051	0.054	13.864	0.142	6081	59	se	1	1	U	1.1	181	16.1	15.0	1	--	43956	1010982	198
127.626044	1.687986	0.06	0.06	73	08303025+0141167	14.101	0.032	0.034	67.2	13.812	0.036	0.037	41.6	13.789	0.051	0.051	23.2	AAA	222	111	000	666656	49.8	19	804047159	0	0	804047134	s	2000-01-30	59	223.218	22.712	191.4	2451573.684	0.84	1.04	1.05	14.155	0.022	13.925	0.089	13.796	0.148	6093	61	sw	0	1	U	0.1	188	15.9	14.9	1	--	43957	1010995	80
127.612321	1.684947	0.11	0.11	125	08302695+0141058	14.733	--	--	--	15.055	0.086	0.087	13.2	14.616	--	--	--	UAU	020	010	0c0	005600	3.4	175	804039648	0	0	804047124	s	2000-01-30	59	223.214	22.699	240.8	2451573.684	--	0.93	--	--	--	14.188	0.073	--	--	6082	12	sw	0	0	U	2.3	352	16.1	15.0	1	--	43957	1010995	80
127.580761	1.701335	0.06	0.06	45	08301938+0142048	14.631	0.036	0.038	42.7	14.208	0.044	0.045	31.0	14.056	0.066	0.067	18.2	AAA	222	111	000	666646	56.6	22	804039566	0	0	804039599	s	2000-01-30	58	223.182	22.679	-79.2	2451573.6811	0.83	0.97	0.94	14.594	0.06	14.152	0.074	13.985	0.209	6144	173	se	0	1	U	0.4	275	16.4	15.4	1	--	43956	1010982	198
127.559304	1.696663	0.14	0.13	8	08301423+0141479	16.043	0.077	0.078	11.6	15.493	0.121	0.122	9.5	15.201	0.162	0.162	6.3	ABC	222	111	000	060606	58.0	184	804039655	0	0	804039606	s	2000-01-30	58	223.175	22.658	-2.0	2451573.6811	0.98	0.81	1.33	16.321	0.224	15.372	0.186	15.02	0.241	6127	250	se	0	1	U	0.3	270	20.2	18.8	1	--	43956	1010982	198
127.594693	1.712073	0.06	0.06	90	08302272+0142434	15.06	0.036	0.038	28.7	14.42	0.055	0.056	25.5	14.219	0.066	0.067	15.6	AAA	222	111	000	662605	31.6	295	804039566	0	0	804039577	s	2000-01-30	58	223.179	22.697	-129.4	2451573.6811	1.02	1.12	0.85	15.063	0.059	14.503	0.168	14.731	0.317	6182	123	se	0	1	U	0.2	132	17.9	16.4	1	--	43956	1010982	198
127.586772	1.715849	0.07	0.07	45	08302082+0142570	15.723	0.066	0.067	15.6	14.973	0.06	0.06	15.3	14.812	0.12	0.12	9.1	AAB	222	111	000	360605	28.2	0	804039552	0	0	804039566	s	2000-01-30	58	223.171	22.691	-100.9	2451573.6811	1.08	0.96	1.11	15.705	0.181	15.211	0.16	14.664	0.119	6196	151	se	0	1	0	--	--	--	--	0	--	43956	1010982	198
127.447192	1.647533	0.24	0.19	81	08294732+0138511	16.529	0.148	0.149	7.4	16.028	0.195	0.195	5.8	15.104	0.176	0.176	6.9	BCC	222	111	000	060506	15.9	129	804020424	0	0	804020436	s	2000-01-30	57	223.163	22.536	-30.1	2451573.6742	1.12	0.98	0.86	15.861	0.062	15.148	0.204	14.526	0.224	5946	222	se	0	1	U	0.7	220	19.0	18.0	1	--	43955	1010949	80
127.433953	1.655758	0.13	0.11	176	08294414+0139207	16.065	0.095	0.096	11.4	15.5	0.113	0.113	9.4	15.384	0.183	0.183	5.3	ABC	222	111	000	061606	17.8	349	804020468	0	0	804020450	s	2000-01-30	57	223.149	22.529	17.6	2451573.6742	1.72	1.15	0.98	16.668	0.24	15.589	0.429	17.98	5.025	5976	235	sw	0	1	U	0.4	199	17.8	17.2	1	--	43955	1010949	80
127.432986	1.660608	0.06	0.06	0	08294391+0139381	13.003	0.018	0.022	191.1	12.478	0.027	0.029	152.3	12.418	0.027	0.029	82.1	AAA	222	111	000	666655	17.8	169	804020450	0	0	804020468	s	2000-01-30	57	223.144	22.53	21.0	2451573.6742	0.85	0.92	1.11	13.021	0.025	12.471	0.062	12.413	0.053	5993	232	sw	0	1	U	0.4	261	15.5	14.3	1	--	43955	1010949	80
127.440603	1.667036	0.06	0.06	17	08294574+0140013	12.716	0.031	0.033	248.9	12.125	0.038	0.039	210.8	11.889	0.027	0.029	133.6	AAA	222	111	000	666655	35.9	230	804020468	0	0	804020477	s	2000-01-30	57	223.142	22.54	-6.4	2451573.6742	2.54	2.87	3.03	12.572	0.01	11.918	0.04	11.787	0.032	6016	246	se	0	1	U	0.5	221	16.1	14.0	1	--	43955	1010949	80
127.449076	1.681583	0.06	0.06	0	08294777+0140536	14.879	0.032	0.035	34.0	14.219	0.05	0.051	30.6	14.108	0.059	0.06	17.3	AAA	222	111	000	666606	60.6	210	804020477	0	0	804020514	s	2000-01-30	57	223.132	22.554	-36.9	2451573.6742	0.86	0.7	0.85	14.927	0.05	14.197	0.063	14.262	0.097	6068	215	se	0	1	U	0.4	334	18.4	16.6	1	--	43955	1010949	80
127.429017	1.681421	0.07	0.07	17	08294296+0140531	15.091	0.055	0.057	27.9	14.806	0.067	0.067	17.8	14.78	0.116	0.117	9.3	AAB	222	111	000	660506	44.1	347	804020529	0	0	804020512	s	2000-01-30	57	223.122	22.537	35.3	2451573.6742	0.77	0.84	0.97	15.029	0.029	14.728	0.085	14.707	0.217	6068	217	sw	0	1	U	0.4	285	16.6	15.8	1	--	43955	1010949	80
127.426213	1.693338	0.28	0.27	63	08294229+0141360	16.725	0.179	0.179	6.2	15.843	0.154	0.154	6.9	15.57	0.229	0.229	4.5	CCD	222	111	c00	050606	25.6	16	804020540	0	0	804020529	s	2000-01-30	57	223.109	22.54	45.4	2451573.6743	0.96	1.0	1.11	16.719	0.4	15.882	0.416	15.431	0.414	6111	207	sw	0	1	U	0.6	196	19.4	18.0	1	--	43955	1010949	80
127.428133	1.700177	0.06	0.06	0	08294275+0142006	9.791	0.021	0.024	3681.5	9.505	0.024	0.026	2354.6	9.458	0.019	0.021	1253.8	AAA	222	111	000	666666	25.6	196	804020529	0	0	804020540	s	2000-01-30	57	223.104	22.545	38.5	2451573.6743	0.74	1.05	0.87	9.779	0.009	9.5	0.034	9.451	0.02	6136	214	sw	0	1	T	0.1	52	11.48	10.79	1	--	43955	1010949	80
127.449164	1.708055	0.06	0.06	17	08294779+0142289	14.457	0.035	0.037	50.1	14.007	0.031	0.032	37.3	13.923	0.06	0.061	20.5	AAA	222	111	000	666656	48.4	12	804020588	0	0	804020559	s	2000-01-30	57	223.107	22.567	-37.2	2451573.6743	1.09	0.91	1.23	14.448	0.059	14.061	0.081	13.887	0.102	6164	215	se	0	1	U	0.3	248	16.8	15.4	1	--	43955	1010949	80
127.492406	1.685115	0.31	0.3	70	08295817+0141064	16.237	0.106	0.106	9.7	15.647	0.136	0.136	8.2	15.683	0.239	0.239	4.1	BBD	222	111	000	160606	24.3	194	804020509	0	0	804020518	s	2000-01-30	57	223.151	22.594	-192.8	2451573.6743	1.09	0.75	1.03	16.086	0.16	15.514	0.191	15.639	0.359	6081	59	se	1	1	0	--	--	--	--	0	--	43955	1010949	80
127.503105	1.700905	0.06	0.06	90	08300074+0142032	14.571	0.039	0.041	45.1	14.218	0.031	0.032	30.7	14.104	0.064	0.065	17.4	AAA	222	111	000	665606	24.1	353	804039583	0	0	804039600	s	2000-01-30	58	223.142	22.611	200.2	2451573.6811	1.34	0.99	0.87	14.543	0.027	14.287	0.153	14.297	0.141	6143	53	sw	1	1	U	0.5	268	16.2	15.2	1	--	43956	1010982	198
127.477304	1.697812	0.23	0.23	42	08295455+0141521	16.685	0.154	0.155	6.4	15.942	0.16	0.161	6.3	15.42	0.22	0.22	5.2	CCD	222	111	000	060606	21.5	291	804020539	0	0	804020536	s	2000-01-30	57	223.131	22.587	-138.5	2451573.6743	0.9	0.94	1.0	16.455	0.262	16.252	0.612	15.216	0.483	6127	114	se	0	1	U	0.3	155	19.1	18.1	1	--	43955	1010949	80
127.471749	1.699981	0.15	0.15	145	08295321+0141599	16.278	0.12	0.121	9.4	15.646	0.138	0.138	8.2	15.792	--	--	--	BBU	220	110	000	060600	21.5	111	804020536	0	0	804020539	s	2000-01-30	57	223.127	22.583	-118.5	2451573.6743	0.82	0.93	--	16.158	0.12	15.666	0.136	--	--	6134	134	se	0	1	U	0.5	178	18.2	17.1	1	--	43955	1010949	80
127.485472	1.701631	0.07	0.07	17	08295651+0142058	15.286	0.047	0.049	23.3	14.805	0.069	0.069	17.9	14.59	0.102	0.102	11.1	AAA	222	111	000	361506	32.4	245	804020536	0	0	804020544	s	2000-01-30	57	223.132	22.596	-167.8	2451573.6743	1.03	1.1	1.02	15.41	0.107	14.79	0.127	14.331	0.225	6140	84	se	0	1	U	0.5	227	17.9	16.6	1	--	43955	1010949	80
127.50233	1.707568	0.06	0.06	90	08300055+0142272	13.442	0.023	0.026	127.5	12.837	0.024	0.026	109.4	12.652	0.029	0.03	66.2	AAA	222	111	000	666655	24.1	173	804039600	0	0	804039583	s	2000-01-30	58	223.135	22.614	203.0	2451573.6811	1.13	0.79	1.5	13.483	0.018	12.913	0.029	12.71	0.045	6167	50	sw	1	1	U	1.1	262	17.2	15.1	1	--	43956	1010982	198
127.469423	1.71372	0.12	0.11	101	08295266+0142493	16.124	0.097	0.098	10.8	15.408	0.101	0.102	10.3	15.34	0.186	0.186	5.6	AAC	222	111	000	060606	50.2	170	804020539	0	0	804020569	s	2000-01-30	57	223.112	22.588	-110.1	2451573.6743	0.99	0.99	0.93	16.256	0.269	15.929	0.347	15.574	0.328	6184	142	se	0	1	0	--	--	--	--	0	--	43955	1010949	80
127.451948	1.721205	0.06	0.06	0	08294846+0143163	12.459	0.019	0.023	315.4	12.056	0.024	0.026	224.7	11.969	0.023	0.024	124.1	AAA	222	111	000	666666	48.4	192	804020559	0	0	804020588	s	2000-01-30	57	223.096	22.576	-47.2	2451573.6743	0.74	0.74	0.86	12.47	0.019	12.038	0.046	11.973	0.029	6211	205	se	0	1	U	1.3	176	14.8	13.5	1	--	43955	1010949	80
127.395474	1.69711	0.34	0.32	88	08293491+0141495	16.551	0.164	0.164	7.3	15.907	0.207	0.207	6.5	15.795	0.274	0.275	3.7	CED	222	111	000	060506	53.7	338	804020566	0	0	804020535	s	2000-01-30	57	223.089	22.515	156.0	2451573.6743	0.85	10.93	0.72	16.461	0.216	16.1	0.268	16.146	0.828	6125	97	sw	0	1	0	--	--	--	--	0	--	43955	1010949	80
127.432292	1.717116	0.07	0.06	96	08294375+0143016	14.569	0.032	0.035	45.2	14.299	0.055	0.056	28.5	14.219	0.084	0.084	15.6	AAA	222	111	000	665614	22.8	14	804020593	0	0	804020581	s	2000-01-30	57	223.09	22.557	23.5	2451573.6743	0.9	1.15	0.65	14.552	0.05	14.172	0.086	14.225	0.229	6197	229	sw	0	1	U	0.3	198	16.4	15.3	1	--	43955	1010949	80
127.433857	1.723263	0.07	0.07	17	08294412+0143237	15.678	0.08	0.081	16.3	15.207	0.105	0.105	12.3	14.965	0.138	0.138	7.9	AAB	222	111	ccc	665616	4.5	317	804020596	0	0	804020593	s	2000-01-30	57	223.085	22.561	17.9	2451573.6743	1.14	0.83	1.22	14.517	0.097	14.072	0.112	14.179	0.144	6219	235	sw	0	1	U	4.0	139	15.8	14.4	1	--	43955	1010949	80
127.531902	1.729757	0.06	0.06	90	08300765+0143471	14.155	0.033	0.036	66.1	13.84	0.032	0.033	43.4	13.806	0.048	0.049	22.9	AAA	222	111	000	666646	14.1	82	804039539	0	0	804039541	s	2000-01-30	58	223.13	22.65	96.6	2451573.6811	1.03	0.88	1.01	14.136	0.051	13.972	0.048	13.85	0.118	6247	156	sw	0	1	U	0.2	230	15.8	15.0	1	--	43956	1010982	198
127.53577	1.730293	0.37	0.35	45	08300858+0143490	17.047	0.231	0.231	4.6	16.123	0.19	0.19	5.3	15.872	0.302	0.303	3.4	DCD	222	111	000	060605	14.1	262	804039541	0	0	804039539	s	2000-01-30	58	223.131	22.654	82.7	2451573.6811	0.95	0.74	0.98	16.537	0.399	17.529	1.515	16.04	0.705	6249	170	sw	0	1	0	--	--	--	--	0	--	43956	1010982	198

Now that we have all the data we want from the 2MASS-PSC, we move on to query SDSS DR9 with astroquery. First we want to find out which tables are available:

catalog_list_sdss = Vizier.find_catalogs("SDSS DR9")
for catalog_ID, catalog in catalog_list_sdss.items():
    print(catalog_ID, ": ", catalog.description)

II/294 :  The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
V/139 :  The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
V/147 :  The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
V/154 :  Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
VII/289 :  SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)
J/other/NewA/58.61 :  SDSS DR9 galaxy clusters optical catalog (Banerjee+, 2018)

We want to get data from the catalogue called V/139. As before let’s have a look at a few rows (per default Vizier.get_catalogs gives you 50 rows) of the code to figure out, which ones are most interesting for us.

test_sdss = Vizier.get_catalogs("V/139")
print(test_sdss)
test_sdss[0]

TableList with 1 tables:
	'0:V/139/sdss9' with 21 column(s) and 50 row(s) 

Table length=50

mode	q_mode	cl	SDSS9	m_SDSS9	Im	RA_ICRS	DE_ICRS	ObsDate	Q	umag	e_umag	gmag	e_gmag	rmag	e_rmag	imag	e_imag	zmag	e_zmag	zsp
						deg	deg	yr		mag	mag	mag	mag	mag	mag	mag	mag	mag	mag
uint8	str1	uint8	str19	str1	str2	float64	float64	float64	uint8	float32	float32	float32	float32	float32	float32	float32	float32	float32	float32	float64
2		6	J025955.29+000252.0	*	Im	44.980386	0.047779	2003.8093	3	23.450	0.580	22.345	0.101	21.948	0.104	22.044	0.163	21.474	0.404	--
2		3	J025956.07+000300.0	*	Im	44.983649	0.050016	1998.8264	3	24.432	1.374	24.266	0.627	22.859	0.314	21.240	0.119	21.032	0.430	--
2		3	J025956.06+000259.9	*	Im	44.983619	0.049995	2002.7581	3	25.964	0.601	24.082	0.489	23.250	0.415	21.666	0.146	20.346	0.189	--
2		3	J025956.06+000259.7	*	Im	44.983618	0.049940	2003.7384	3	25.593	0.783	24.345	0.567	22.358	0.174	21.124	0.084	20.942	0.310	--
2		3	J025956.06+000259.9	*	Im	44.983616	0.049976	2001.7179	3	23.097	0.818	23.954	0.721	21.839	0.188	20.827	0.102	20.139	0.238	--
2		3	J025956.06+000259.9	*	Im	44.983614	0.049984	2007.8858	3	25.534	1.705	24.458	1.282	23.156	0.451	21.522	0.119	20.811	0.229	--
2		3	J025956.06+000259.9	*	Im	44.983607	0.049985	2002.8508	3	24.403	1.152	23.370	0.273	22.722	0.261	21.445	0.148	20.530	0.285	--
2		3	J025956.06+000259.9	*	Im	44.983606	0.049981	1998.7254	3	23.421	0.462	24.430	0.472	22.850	0.206	21.512	0.091	21.022	0.241	--
2		6	J025956.06+000300.0	*	Im	44.983596	0.050026	2003.9076	3	25.992	0.686	24.375	0.762	22.527	0.225	21.520	0.120	20.665	0.249	--
2		3	J025956.06+000259.9	*	Im	44.983583	0.049991	2001.7233	3	22.470	0.576	23.287	0.488	21.995	0.237	20.819	0.133	20.680	0.520	--
2		3	J025956.05+000300.0		Im	44.983574	0.050003	2002.6788	1	24.248	1.597	23.679	0.576	22.131	0.214	21.002	0.117	19.769	0.180	--
2		3	J025956.07+000259.8		Im	44.983631	0.049951	1998.8728	3	22.851	1.271	23.004	0.760	21.424	0.333	19.989	0.154	20.557	1.139	--
2		3	J025956.05+000259.9		Im	44.983567	0.049994	2000.7542	3	26.599	0.566	26.133	0.809	22.708	0.387	20.990	0.118	20.677	0.397	--
2		3	J025956.07+000300.0	*	Im	44.983661	0.050018	1998.8837	3	24.845	0.908	24.643	0.624	22.791	0.272	21.207	0.107	20.994	0.393	--
2		3	J025956.07+000259.9	*	Im	44.983652	0.049994	2002.7774	3	26.015	0.707	25.260	0.799	22.672	0.275	20.949	0.095	20.789	0.371	--
2		3	J025956.07+000259.9	*	Im	44.983649	0.049992	2008.0006	3	23.019	0.494	23.963	0.526	22.786	0.257	21.618	0.145	20.931	0.231	--
2		6	J025956.06+000259.7	*	Im	44.983623	0.049937	2002.0373	3	24.624	0.997	25.291	0.604	22.508	0.182	21.623	0.109	21.072	0.273	--
1		3	J025956.07+000259.9		Im	44.983638	0.049973	2003.8857	3	23.564	0.811	23.890	0.536	23.039	0.372	21.279	0.118	20.331	0.230	--
2		3	J025956.06+000300.0	*	Im	44.983622	0.049999	2002.8318	3	25.895	0.690	23.576	0.354	22.466	0.209	21.405	0.122	20.130	0.177	--
2		3	J025956.09+000300.0		Im	44.983733	0.050018	1998.7336	3	26.701	0.946	23.091	0.658	21.053	0.170	20.415	0.132	19.497	0.251	--
2		3	J025956.09+000300.1		Im	44.983711	0.050045	2003.7410	3	25.446	1.162	24.225	0.590	22.702	0.238	21.674	0.154	21.003	0.359	--
2		3	J025956.08+000259.6		Im	44.983694	0.049890	2000.9068	3	25.161	1.335	23.939	0.630	22.961	0.423	21.213	0.136	20.662	0.383	--
2		3	J025956.08+000259.9		Im	44.983687	0.049990	2004.9478	3	23.981	1.101	25.069	0.766	22.989	0.399	21.584	0.175	20.705	0.336	--
2		3	J025956.08+000300.0		Im	44.983667	0.050026	2001.8653	3	25.634	0.825	24.138	0.515	22.842	0.291	21.318	0.114	20.715	0.257	--
2		3	J025956.08+000259.8		Im	44.983667	0.049971	2003.8093	3	23.971	1.170	25.487	0.825	22.456	0.247	21.132	0.113	21.016	0.427	--
2		3	J025953.60+000241.7		Im	44.973363	0.044922	1998.8264	3	24.076	1.158	23.391	0.311	21.870	0.124	21.525	0.140	20.892	0.350	--
2		6	J025953.60+000241.9	*	Im	44.973371	0.044996	2003.7410	3	23.348	0.852	23.211	0.273	21.987	0.128	21.409	0.122	22.344	0.904	--
2		3	J025953.58+000241.9	*	Im	44.973258	0.044987	1998.8728	3	23.227	0.760	23.060	0.341	22.110	0.250	21.119	0.176	20.971	0.654	--
2		3	J025953.57+000242.1		Im	44.973222	0.045039	1998.7336	3	26.037	0.866	22.755	0.249	21.550	0.140	21.056	0.122	22.775	1.313	--
2		3	J025953.57+000241.9		Im	44.973221	0.044972	2002.8508	3	23.730	0.849	23.588	0.320	22.121	0.157	21.699	0.184	20.864	0.377	--
2		3	J025953.56+000242.1		Im	44.973181	0.045027	2002.0373	3	25.813	0.719	24.307	0.582	21.765	0.120	21.536	0.130	21.034	0.346	--
2		3	J025953.60+000241.9	*	Im	44.973339	0.044991	2002.7581	3	23.498	0.726	23.970	0.459	21.702	0.110	21.652	0.144	21.405	0.461	--
2		3	J025953.58+000241.7		Im	44.973264	0.044936	2000.9068	3	24.813	1.217	23.540	0.375	22.109	0.158	21.409	0.133	21.036	0.422	--
2		3	J025953.58+000242.1		Im	44.973263	0.045029	2002.6788	1	25.315	0.968	23.794	0.445	21.944	0.127	21.292	0.102	20.831	0.313	--
2		3	J025953.58+000242.0		Im	44.973263	0.045001	1998.7254	3	24.240	0.678	23.658	0.265	22.310	0.118	21.610	0.092	21.437	0.307	--
2		3	J025953.58+000241.8	*	Im	44.973260	0.044944	2001.7233	3	24.990	1.658	24.089	0.741	21.575	0.133	21.216	0.153	20.421	0.332	--
2		3	J025953.58+000241.9	*	Im	44.973254	0.044978	2003.7384	3	24.259	0.968	23.527	0.290	21.998	0.116	21.417	0.099	20.953	0.281	--
2		3	J025953.59+000241.9	*	Im	44.973325	0.044973	2000.7542	3	23.214	0.706	24.015	0.589	22.129	0.177	21.435	0.135	21.357	0.524	--
2		3	J025953.59+000241.8		Im	44.973319	0.044964	2002.7774	3	24.288	1.273	23.057	0.239	21.635	0.110	21.160	0.119	20.646	0.316	--
2		3	J025953.59+000242.1		Im	44.973319	0.045037	2004.9478	3	24.701	1.301	23.595	0.366	22.002	0.173	21.640	0.186	20.881	0.397	--
2		3	J025953.59+000242.0		Im	44.973316	0.045001	2008.0006	3	25.346	0.929	24.308	0.658	22.173	0.155	21.577	0.145	20.721	0.197	--
2		3	J025953.59+000241.9	*	Im	44.973304	0.044976	2002.8318	3	25.538	0.713	23.713	0.314	22.173	0.128	21.500	0.104	21.093	0.306	--
2		3	J025953.60+000242.0		Im	44.973350	0.045004	2007.8858	3	22.152	0.532	23.801	0.939	22.174	0.220	21.527	0.135	21.110	0.331	--
2		3	J025953.59+000241.9	*	Im	44.973294	0.044997	2003.9076	3	25.201	1.364	22.889	0.282	21.843	0.151	21.168	0.108	21.248	0.493	--
2		3	J025953.59+000241.9	*	Im	44.973291	0.044981	1998.8837	3	22.888	0.400	23.120	0.240	21.758	0.124	21.315	0.136	21.443	0.637	--
2		3	J025953.58+000241.8	*	Im	44.973286	0.044946	2001.7179	3	23.654	0.892	23.592	0.389	22.294	0.201	21.424	0.121	22.125	0.781	--
1	+	3	J025953.58+000241.9		Im	44.973284	0.044973	2003.8857	3	23.519	0.529	23.650	0.298	22.182	0.123	21.591	0.112	21.892	0.522	--
2		3	J025953.58+000241.9	*	Im	44.973274	0.044992	2003.8093	3	22.861	0.445	23.391	0.291	21.886	0.128	21.564	0.138	21.315	0.452	--
2		3	J025953.58+000241.9	*	Im	44.973274	0.044986	2001.8653	3	24.442	1.263	23.405	0.307	21.929	0.137	21.142	0.100	21.122	0.373	--
2		3	J025952.90+000248.4		Im	44.970415	0.046785	2002.8318	3	26.385	0.522	24.003	0.538	22.335	0.221	22.723	0.444	21.606	0.667	--

Again we want to get the coordinates of the source as well as magnitudes at all five SDSS bands (u, g, r, i and z), and a classification (cl). Do restrict the query to returning these columns and to get more than 50 rows returned, we create a custom Vizier object and then use this object to again query within 14arcmin of RA=08h30m00s, Dec=01d30m00s.

custom_vizier = Vizier(
    row_limit=-1,
    columns=["RA_ICRS", "DE_ICRS", "umag", "gmag", "rmag", "imag", "zmag", "cl"],
)
coord = SkyCoord(ra="08:30:00", dec="01:30:00", unit=(u.hourangle, u.deg))
sdss_results = custom_vizier.query_region(coord, radius=14 * u.arcmin, catalog="V/139")
sdss_results

TableList with 1 tables:
	'0:V/139/sdss9' with 8 column(s) and 12405 row(s) 

So we have one table in the resulting lists of tables. It is called V/139/sdss9. Let’s have a look at it:

sdss_results[0]

Table length=12405

RA_ICRS	DE_ICRS	umag	gmag	rmag	imag	zmag	cl
deg	deg	mag	mag	mag	mag	mag
float64	float64	float32	float32	float32	float32	float32	uint8
127.267366	1.512930	21.853	19.732	18.870	18.564	18.379	6
127.267372	1.512928	22.250	19.697	18.855	18.568	18.306	6
127.267372	1.512928	22.047	19.751	18.879	18.549	18.383	6
127.267727	1.495873	22.879	22.223	21.492	21.122	20.872	3
127.267754	1.495933	22.972	22.431	21.465	21.162	21.009	3
127.267831	1.500005	23.816	24.462	22.470	20.754	20.033	6
127.267836	1.495947	22.638	22.051	21.045	20.627	20.785	3
127.267853	1.499961	24.527	24.690	22.381	20.670	20.016	6
127.267955	1.499932	24.332	24.996	23.056	20.649	19.976	6
127.268214	1.501147	19.210	18.034	17.572	17.435	17.414	6
127.268221	1.501147	19.226	18.012	17.584	17.426	17.400	6
127.268223	1.501140	19.180	18.003	17.578	17.440	17.406	6
127.269016	1.486441	21.146	20.253	19.958	19.841	19.841	6
127.269020	1.486437	21.187	20.300	19.955	19.856	19.915	6
127.269026	1.486427	21.299	20.266	19.971	19.847	20.042	6
127.269248	1.523607	25.294	23.536	21.922	21.086	20.620	6
127.269280	1.523563	24.088	23.382	21.700	21.113	20.802	6
127.269309	1.523600	23.671	23.413	21.457	21.148	20.785	6
127.269518	1.465693	23.865	23.479	22.466	22.404	22.402	6
127.270783	1.524278	24.993	25.751	25.505	22.173	22.502	6
127.270852	1.477931	23.081	21.066	19.695	19.081	18.684	6
127.270855	1.477917	23.262	21.052	19.704	19.084	18.723	6
127.270866	1.477931	23.015	20.970	19.721	19.090	18.741	6
127.271627	1.500150	24.196	23.277	22.291	21.807	22.824	6
127.271639	1.500179	23.544	23.354	22.441	22.311	21.312	6
127.271829	1.502992	24.089	21.899	20.573	19.622	19.092	6
127.271836	1.503005	24.355	22.036	20.581	19.616	19.109	6
127.271852	1.502987	24.806	22.086	20.555	19.687	19.090	6
127.272076	1.524589	20.722	18.232	17.149	16.760	16.547	3
127.272102	1.524583	20.485	18.199	17.150	16.753	16.497	6
127.272107	1.524579	20.574	18.209	17.151	16.738	16.503	6
127.272351	1.516112	22.086	21.380	20.923	20.674	20.912	6
127.272355	1.516121	22.695	21.323	20.843	20.561	20.467	6
127.272372	1.516100	22.181	21.519	20.880	20.647	20.302	6
127.272430	1.467621	24.131	24.414	23.483	22.016	21.879	6
127.272465	1.467555	24.392	25.942	25.435	21.969	21.160	6
127.272474	1.531654	22.407	25.298	25.873	24.440	22.388	6
127.272832	1.535141	23.054	23.294	22.872	21.990	21.219	3
...	...	...	...	...	...	...	...
127.710518	1.452388	25.773	24.766	23.877	21.956	23.434	6
127.710530	1.452400	25.695	24.271	22.996	21.552	21.891	3
127.710641	1.403434	20.679	20.684	18.763	17.907	27.534	3
127.710885	1.418488	24.253	23.797	21.927	20.801	20.036	3
127.710926	1.418453	24.732	23.856	22.643	21.205	20.887	6
127.711646	1.419932	27.022	23.513	21.392	20.783	20.444	3
127.711647	1.420033	24.997	23.093	21.284	20.371	20.049	3
127.711899	1.442011	23.784	24.841	22.956	22.464	22.239	6
127.712401	1.430973	23.869	25.367	22.623	21.460	20.695	6
127.712596	1.411997	24.022	21.649	20.210	19.356	18.880	6
127.712598	1.411981	24.725	21.646	20.264	19.349	18.997	6
127.712704	1.407039	19.168	25.089	17.669	18.277	22.833	3
127.712962	1.406988	16.414	15.202	16.353	14.258	14.675	6
127.712969	1.440626	22.596	22.838	20.677	19.756	19.059	3
127.712982	1.407005	15.754	14.604	14.257	14.150	14.092	6
127.713297	1.437107	24.683	23.414	22.458	21.791	22.172	3
127.714202	1.439959	23.825	21.923	20.910	20.548	20.542	6
127.714657	1.410314	24.515	23.162	21.828	21.770	21.208	6
127.714670	1.449225	24.602	22.650	22.379	21.143	20.496	3
127.714680	1.449163	24.315	23.419	23.015	21.137	20.233	6
127.714686	1.449212	26.242	26.014	22.411	21.288	20.643	3
127.714752	1.410322	21.086	20.852	19.745	19.506	19.241	3
127.715950	1.443127	25.846	24.523	22.173	21.987	23.048	3
127.716223	1.425768	25.132	22.716	22.695	22.423	24.191	3
127.717228	1.435206	21.452	26.274	21.371	19.907	18.840	3
127.717810	1.430291	23.693	23.101	23.162	22.646	22.609	6
127.718194	1.443066	25.652	23.399	22.615	22.155	23.692	6
127.719353	1.424758	29.773	31.292	21.664	16.917	28.798	3
127.721086	1.454952	25.206	22.518	21.180	20.003	19.220	6
127.721092	1.454942	24.141	22.402	21.299	19.986	19.388	6
127.721106	1.454915	25.321	22.688	21.179	20.001	19.185	6
127.721135	1.433421	24.965	23.102	21.848	21.408	20.790	6
127.721294	1.428704	23.008	22.731	22.155	21.610	22.793	3
127.721770	1.431717	24.914	22.575	21.113	20.438	20.019	6
127.721857	1.451469	22.933	22.365	21.472	21.923	20.895	3
127.722534	1.455524	23.442	23.378	22.518	22.918	21.866	3
127.722635	1.433612	24.813	23.994	22.453	21.173	20.798	3
127.722672	1.455765	22.961	25.752	22.950	22.003	23.070	6

Step #2: Cross-matching#

In this next step, we find common sources in the 2MASS-PSC and SDSS-DR9 catalogues. One simple way to do this using the CDS XMatch service, which can also be reached with astroquery. The most reliable way to quuery XMatch is by uploading one of the tables (which will also make sure we stay in our region of interest) and crossmatching it to a table available in VizieR.

mass_psc.write("Data/2MASS_PSC.vot", format="votable", overwrite=True)
sdss_results[0].write("Data/SDSS_DR9.vot", format="votable", overwrite=True)

sdss_mass = XMatch.query(
    cat1=Path("Data/2MASS_PSC.vot").open(),
    cat2="vizier:V/139/sdss9",
    max_distance=4 * u.arcsec,
    colRA1="RAJ2000",
    colDec1="DEJ2000",
)
sdss_mass

Table length=717

angDist	RAJ2000	DEJ2000	errMaj	errMin	errPA	2MASS	Jmag	Jcmsig	e_Jmag	Jsnr	Hmag	Hcmsig	e_Hmag	Hsnr	Kmag	Kcmsig	e_Kmag	Ksnr	Qflg	Rflg	Bflg	Cflg	Ndet	prox	pxPA	pxCntr	Xflg	Aflg	Cntr	Hemis	Date	Scan	GLON	GLAT	Xscan	JD	Jpsfchi	Hpsfchi	Kpsfchi	Jstdap	e_Jstdap	Hstdap	e_Hstdap	Kstdap	e_Kstdap	edgeNS	edgeEW	edge	dup	use	opt	Dopt	PAopt	Bmag	Rmag	Nopt	extKey	scanKey	coaddKey	coadd	SDSS9	RAdeg	DEdeg	errHalfMaj	errHalfMin	errPosAng	umag	gmag	rmag	imag	zmag	e_umag	e_gmag	e_rmag	e_imag	e_zmag	objID	cl	q_mode	flags	Q	ObsDate	pmRA	e_pmRA	pmDE	e_pmDE	SpObjID	zsp	e_zsp	f_zsp	spType	spCl	subClass
float64	float64	float64	float64	float64	int64	str16	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	str3	int64	int64	str3	int64	float64	int64	int64	int64	int64	int64	str1	str10	int64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	int64	int64	str2	int64	int64	str1	float64	int64	float64	float64	int64	int64	int64	int64	int64	str19	float64	float64	float64	float64	int64	float64	float64	float64	float64	float64	float64	float64	float64	float64	float64	int64	int64	int64	str16	int64	float64	int64	int64	int64	int64	int64	int64	int64	int64	int64	int64	int64
0.352101	127.509154	1.269173	0.2	0.15	87	08300219+0116090	15.963	0.095	0.096	12.5	15.546	0.121	0.122	9.0	14.93	0.144	0.144	8.1	ABB	222	111	000	160606	14.2	340	804040589	0	0	804040599	s	2000-01-30	58	223.554	22.408	178.5	2451573.6815	0.89	1.01	0.92	15.939	0.235	15.899	0.319	14.69	0.124	4589	74	sw	0	1	0	--	--	--	--	0	--	43956	1010984	221	J083002.21+011608.9	127.509248	1.269146	0.01	0.009	90	23.712	20.876	19.402	18.068	17.338	0.67	0.034	0.015	0.009	0.015	1237653664712163908	6	1	0000201010000110	3	2000.9155	-53	5	-43	5	0	--	--	--	--	--	--
0.152435	127.507779	1.272875	0.12	0.11	86	08300186+0116223	15.594	0.083	0.084	17.6	15.563	0.117	0.117	8.9	15.272	0.181	0.182	5.9	ABC	222	111	000	360606	14.2	160	804040599	0	0	804040589	s	2000-01-30	58	223.55	22.408	183.4	2451573.6814	1.64	0.82	1.47	15.432	0.153	15.81	0.424	14.992	0.114	4602	69	sw	0	1	U	0.2	270	17.1	16.5	1	--	43956	1010984	221	J083001.86+011622.2	127.507749	1.272845	0.002	0.002	90	18.394	17.213	16.806	16.674	16.623	0.014	0.004	0.004	0.005	0.01	1237653664712163358	6	1	0000001010000000	3	2000.9155	-3	3	2	3	0	--	--	--	--	--	--
0.217574	127.514167	1.277495	0.23	0.21	51	08300340+0116389	16.553	0.17	0.171	7.3	16.179	0.194	0.194	5.0	15.894	--	--	--	CCU	220	110	000	60600	28.4	234	804040589	0	0	804040577	s	2000-01-30	58	223.549	22.416	160.4	2451573.6814	0.69	1.58	--	16.335	0.139	18.014	3.36	--	--	4619	92	sw	0	1	U	0.0	13	18.0	17.3	1	--	43956	1010984	221	J083003.39+011638.8	127.514129	1.277448	0.003	0.003	90	19.513	18.189	17.714	17.559	17.485	0.028	0.006	0.006	0.007	0.016	1237653664712163741	6	1	0000001010000000	3	2000.9155	2	3	1	3	0	--	--	--	--	--	--
0.048922	127.463251	1.271903	0.07	0.07	0	08295118+0116188	15.844	0.076	0.077	14.0	15.11	0.095	0.096	13.5	15.029	0.138	0.138	7.4	AAB	222	111	000	260606	41.0	160	804019559	0	0	804019587	s	2000-01-30	57	223.528	22.369	-87.9	2451573.6739	1.78	0.8	1.14	15.935	0.238	15.077	0.164	15.197	0.438	4593	164	se	0	1	U	1.0	281	20.0	18.4	1	--	43955	1010947	56	J082951.17+011618.8	127.463238	1.271907	0.005	0.005	90	21.976	19.794	18.386	17.54	17.048	0.176	0.016	0.008	0.007	0.012	1237653664712098290	6	1	0000001010000000	3	2000.9155	-19	4	8	4	0	--	--	--	--	--	--
0.023156	127.463023	1.2864	0.06	0.06	0	08295112+0117110	14.093	0.029	0.032	70.0	13.652	0.033	0.035	51.7	13.553	0.042	0.043	28.9	AAA	222	111	000	666635	52.2	179	804019587	0	0	804019616	s	2000-01-30	57	223.514	22.376	-87.0	2451573.674	0.75	0.97	0.91	14.077	0.023	13.576	0.05	13.692	0.14	4646	165	se	0	1	U	0.4	160	16.3	14.6	1	--	43955	1010947	56	J082951.12+011711.0	127.463018	1.286396	0.001	0.001	90	17.223	15.796	15.259	15.074	14.993	0.008	0.003	0.003	0.003	0.005	1237653664712098015	6	1	0000201090020010	3	2000.9155	5	3	-5	3	0	--	--	--	--	--	--
0.102852	127.48465	1.271192	0.06	0.06	0	08295631+0116162	13.848	0.026	0.029	87.8	13.177	0.02	0.022	80.0	12.932	0.023	0.024	51.1	AAA	222	111	000	666655	15.7	12	804019600	0	0	804019585	s	2000-01-30	57	223.54	22.387	-164.9	2451573.6739	0.88	0.87	0.95	13.813	0.042	13.143	0.051	13.009	0.056	4591	87	se	0	1	U	0.2	244	18.8	16.7	1	--	43955	1010947	56	J082956.31+011616.3	127.484625	1.271206	0.002	0.002	90	21.011	18.359	16.959	15.814	15.169	0.081	0.007	0.004	0.004	0.005	1237653664712098324	6	1	0000001010000000	3	2000.9155	-3	3	4	3	0	--	--	--	--	--	--
0.385255	127.485565	1.275456	0.2	0.17	4	08295653+0116316	16.26	0.112	0.112	9.5	15.908	0.172	0.172	6.5	15.264	0.184	0.184	6.0	BCC	222	111	000	160606	15.7	192	804019585	0	0	804019600	s	2000-01-30	57	223.536	22.39	-168.2	2451573.674	0.84	1.3	0.8	16.125	0.291	15.529	0.253	15.21	0.246	4606	84	se	0	1	U	0.4	232	18.1	17.4	1	--	43955	1010947	56	J082956.55+011631.7	127.485664	1.275497	0.003	0.003	90	20.245	18.34	17.584	17.343	17.185	0.046	0.007	0.005	0.006	0.013	1237653664712098328	6	1	0000001010000000	3	2000.9155	5	3	2	3	0	--	--	--	--	--	--
0.18744	127.494339	1.280734	0.15	0.15	145	08295864+0116506	16.317	0.119	0.12	9.0	15.818	0.141	0.141	7.0	15.099	--	--	--	BBU	220	110	000	60600	36.9	239	804019600	0	0	804019605	s	2000-01-30	57	223.536	22.4	-199.8	2451573.674	0.96	1.62	--	16.264	0.088	16.219	0.553	--	--	4625	52	se	1	1	0	--	--	--	--	0	--	43955	1010947	56	J082958.64+011650.4	127.494341	1.280682	0.009	0.008	90	22.545	20.673	19.202	18.184	17.586	0.275	0.029	0.013	0.009	0.017	1237653664712098411	6	1	0000901010020000	3	2000.9155	7	5	-6	5	0	--	--	--	--	--	--
0.038231	127.494645	1.296204	0.07	0.07	17	08295871+0117463	15.25	0.05	0.051	24.1	15.062	0.077	0.078	14.1	14.87	0.114	0.114	8.6	AAB	222	111	000	660506	47.1	299	804019652	0	0	804019639	s	2000-01-30	57	223.521	22.408	-200.9	2451573.674	0.98	0.89	1.01	15.178	0.064	15.195	0.302	14.779	0.326	4681	51	se	1	1	U	0.4	185	16.8	16.1	1	--	43955	1010947	56	J082958.71+011746.3	127.494638	1.296212	0.002	0.001	90	17.968	16.737	16.304	16.182	16.107	0.012	0.004	0.004	0.004	0.007	1237653664712098075	6	1	0000201010021010	3	2000.9155	1	3	-6	3	0	--	--	--	--	--	--
0.125123	127.483247	1.302628	0.06	0.06	0	08295597+0118094	13.484	0.025	0.027	122.7	12.862	0.02	0.022	106.9	12.807	0.033	0.034	57.4	AAA	222	111	000	665555	27.9	314	804019667	0	0	804019652	s	2000-01-30	57	223.509	22.401	-159.8	2451573.674	1.06	0.7	1.1	13.457	0.027	12.875	0.06	12.777	0.069	4704	92	se	0	1	U	2.0	195	16.3	14.5	1	--	43955	1010947	56	J082955.98+011809.3	127.483254	1.302594	0.001	0.001	90	17.956	15.896	15.035	14.727	14.511	0.012	0.003	0.003	0.003	0.004	1237653664712098036	6	1	0000201090020010	3	2000.9155	-9	3	-41	3	0	--	--	--	--	--	--
0.117925	127.40852	1.286066	0.06	0.06	0	08293804+0117098	13.936	0.031	0.033	80.9	13.296	0.032	0.033	71.7	13.117	0.029	0.03	43.1	AAA	222	111	000	666666	25.9	57	804019624	0	0	804019615	s	2000-01-30	57	223.486	22.328	109.1	2451573.674	1.01	0.95	1.1	13.927	0.03	13.241	0.045	13.122	0.059	4645	144	sw	0	1	U	0.6	234	17.2	15.7	1	--	43955	1010947	56	J082938.05+011709.7	127.408546	1.286046	0.001	0.001	90	19.627	16.995	15.801	15.324	15.063	0.031	0.004	0.003	0.004	0.005	1237653664712098194	6	1	0000901010020000	3	2000.9155	-6	3	-4	3	0	--	--	--	--	--	--
0.121573	127.414546	1.289993	0.06	0.06	0	08293949+0117239	14.666	0.032	0.034	41.3	14.264	0.043	0.044	29.4	14.223	0.065	0.066	15.6	AAA	222	111	000	664616	23.6	13	804019640	0	0	804019624	s	2000-01-30	57	223.485	22.335	87.4	2451573.674	1.4	0.77	1.15	14.729	0.04	14.389	0.118	14.418	0.225	4659	165	sw	0	1	U	0.4	205	16.3	15.3	1	--	43955	1010947	56	J082939.49+011723.9	127.414574	1.289974	0.001	0.001	90	17.76	16.329	15.797	15.611	15.537	0.01	0.003	0.003	0.004	0.006	1237653664712097935	6	1	0000201090020010	3	2000.9155	1	3	-5	3	0	--	--	--	--	--	--
0.136879	127.398036	1.299818	0.21	0.18	86	08293552+0117593	16.006	0.091	0.092	12.0	15.514	0.124	0.124	9.3	15.203	0.145	0.145	6.3	ABC	222	111	000	61606	45.2	1	804019675	0	0	804019645	s	2000-01-30	57	223.467	22.325	146.9	2451573.674	0.76	1.57	1.08	16.174	0.093	15.085	0.291	15.687	0.376	4695	106	sw	0	1	U	0.8	255	18.0	17.1	1	--	43955	1010947	56	J082935.53+011759.3	127.398074	1.299821	0.003	0.003	90	20.175	18.156	17.348	17.067	16.9	0.044	0.006	0.005	0.005	0.011	1237653664712098178	6	1	0000B01010020010	3	2000.9155	-9	3	1	3	0	--	--	--	--	--	--
0.057062	127.477715	1.308056	0.06	0.06	0	08295465+0118290	14.569	0.033	0.036	45.2	13.969	0.038	0.039	38.6	13.678	0.045	0.045	25.7	AAA	222	111	000	456656	27.9	134	804019652	0	0	804019667	s	2000-01-30	57	223.501	22.399	-139.9	2451573.674	1.11	1.15	1.39	13.278	1.852	13.986	0.063	13.792	0.117	4723	112	se	0	1	U	1.8	224	19.7	17.4	1	--	43955	1010947	56	J082954.65+011828.9	127.477724	1.308043	0.004	0.003	90	22.179	19.31	17.907	16.638	15.946	0.207	0.011	0.006	0.005	0.007	1237653664712098316	6	1	0000001010020100	3	2000.9155	-22	3	-24	3	0	--	--	--	--	--	--
0.247647	127.46831	1.31075	0.12	0.11	9	08295239+0118387	16.062	0.091	0.092	11.4	15.293	0.093	0.094	11.4	15.237	--	--	--	AAU	220	110	000	60600	6.9	346	804019676	0	0	804019672	s	2000-01-30	57	223.494	22.392	-106.1	2451573.674	1.38	1.13	--	16.091	0.214	15.497	0.178	--	--	4733	146	se	0	1	U	0.4	254	18.0	17.0	1	--	43955	1010947	56	J082952.40+011838.5	127.46835	1.310694	0.003	0.003	90	19.768	17.99	17.355	17.145	17.042	0.033	0.006	0.005	0.005	0.012	1237653664712098297	6	1	0000201010020010	3	2000.9155	-1	3	-3	3	0	--	--	--	--	--	--
0.05223	127.467857	1.3126	0.14	0.13	88	08295228+0118453	16.272	0.106	0.107	9.4	15.335	0.123	0.123	11.0	15.21	0.17	0.171	6.3	BBC	222	111	000	60606	6.9	166	804019672	0	0	804019676	s	2000-01-30	57	223.492	22.393	-104.4	2451573.674	1.14	0.94	0.97	16.225	0.162	15.219	0.157	15.68	0.654	4740	148	se	0	1	U	0.5	234	19.2	17.9	1	--	43955	1010947	56	J082952.28+011845.4	127.467861	1.312614	0.004	0.004	90	22.186	19.306	18.113	17.644	17.365	0.207	0.012	0.007	0.007	0.015	1237653664712098298	6	1	0000201090021010	3	2000.9155	-4	3	0	3	0	--	--	--	--	--	--
0.120696	127.459955	1.321278	0.07	0.07	17	08295038+0119166	15.254	0.058	0.059	24.0	15.065	0.085	0.086	14.1	14.92	0.127	0.128	8.2	AAB	222	111	000	660606	42.2	138	804019676	0	0	804019689	s	2000-01-30	57	223.479	22.39	-76.0	2451573.674	1.18	1.23	1.0	15.108	0.099	15.093	0.208	14.956	0.186	4771	176	se	0	1	U	0.5	216	16.9	16.2	1	--	43955	1010947	56	J082950.39+011916.7	127.459961	1.321311	0.002	0.002	90	18.122	16.862	16.416	16.271	16.205	0.013	0.004	0.004	0.004	0.008	1237653664712098000	6	1	0000201090020010	3	2000.9155	-2	3	-1	3	0	--	--	--	--	--	--
0.081882	127.416013	1.296385	0.06	0.06	17	08293984+0117469	14.667	0.039	0.041	41.3	14.285	0.054	0.055	28.8	14.226	0.082	0.082	15.5	AAA	222	111	000	664605	17.6	316	804019646	0	0	804019640	s	2000-01-30	57	223.48	22.339	82.2	2451573.674	1.08	1.17	1.02	14.722	0.028	14.294	0.107	14.331	0.133	4682	171	sw	0	1	U	0.2	259	16.3	15.3	1	--	43955	1010947	56	J082939.84+011746.9	127.416035	1.296379	0.001	0.001	90	17.175	16.044	15.674	15.529	15.488	0.008	0.003	0.003	0.004	0.006	1237653664712097938	6	1	0000001010000000	3	2000.9155	-2	3	2	3	0	--	--	--	--	--	--
0.14732	127.429505	1.300463	0.08	0.08	0	08294308+0118016	15.482	0.058	0.059	19.5	14.972	0.062	0.062	15.3	15.06	0.126	0.127	7.2	AAB	222	111	000	360605	50.7	253	804019640	0	0	804019647	s	2000-01-30	57	223.483	22.353	33.6	2451573.674	1.04	1.09	1.12	15.522	0.122	15.222	0.122	15.177	0.3	4697	219	sw	0	1	U	0.6	224	17.6	16.4	1	--	43955	1010947	56	J082943.09+011801.7	127.429545	1.300472	0.002	0.002	90	19.292	17.617	16.953	16.675	16.531	0.025	0.005	0.004	0.005	0.009	1237653664712098246	6	0	0000B01090020010	3	2000.9155	-1	3	-3	3	0	--	--	--	--	--	--
0.085624	127.412629	1.299927	0.07	0.06	4	08293903+0117597	15.483	0.06	0.061	19.5	14.848	0.077	0.078	17.2	14.62	0.1	0.1	10.8	AAA	222	111	000	362616	17.6	136	804019640	0	0	804019646	s	2000-01-30	57	223.475	22.338	94.3	2451573.674	0.8	1.08	1.04	15.382	0.09	14.712	0.175	14.508	0.246	4695	158	sw	0	1	0	--	--	--	--	0	--	43955	1010947	56	J082939.03+011759.7	127.41265	1.299916	0.006	0.006	90	23.724	20.217	18.773	17.548	16.861	0.696	0.021	0.01	0.007	0.011	1237653664712098398	6	0	0000901010020000	3	2000.9155	27	5	-18	5	0	--	--	--	--	--	--
0.094559	127.422784	1.315596	0.08	0.08	163	08294146+0118561	15.931	0.086	0.087	12.9	15.324	0.094	0.095	11.1	15.587	0.226	0.226	4.4	AAD	222	111	000	60606	24.8	322	804019688	0	0	804019682	s	2000-01-30	57	223.465	22.355	57.8	2451573.674	1.24	0.91	1.03	16.191	0.171	15.908	0.388	16.012	0.523	4751	195	sw	0	1	U	0.4	218	17.8	16.8	1	--	43955	1010947	56	J082941.47+011856.2	127.422801	1.315616	0.002	0.002	90	19.49	17.764	17.13	16.902	16.813	0.028	0.005	0.005	0.005	0.011	1237653664712098232	6	1	0000201090021010	3	2000.9155	0	3	0	3	0	--	--	--	--	--	--
0.113296	127.418538	1.321024	0.07	0.07	0	08294044+0119156	15.265	0.056	0.057	23.8	14.87	0.082	0.082	16.8	14.747	0.106	0.106	9.6	AAB	222	111	000	561616	21.0	346	804019698	0	0	804019688	s	2000-01-30	57	223.458	22.354	73.1	2451573.674	1.06	0.7	0.66	15.156	0.11	14.76	0.112	14.477	0.17	4771	180	sw	0	1	U	0.5	205	16.9	16.1	1	--	43955	1010947	56	J082940.45+011915.7	127.418569	1.321029	0.002	0.002	90	18.078	16.844	16.386	16.205	16.148	0.012	0.004	0.004	0.004	0.008	1237653664712097947	6	1	0000201090000010	3	2000.9155	1	3	-4	3	0	--	--	--	--	--	--
0.086304	127.444601	1.320708	0.08	0.08	17	08294670+0119145	15.47	0.059	0.06	19.7	14.884	0.08	0.08	16.6	15.177	0.164	0.164	6.5	AAC	222	111	000	360505	55.3	357	804019721	0	0	804019686	s	2000-01-30	57	223.472	22.376	-20.7	2451573.674	0.88	1.09	0.97	15.46	0.155	14.897	0.172	15.495	0.289	4769	231	se	0	1	U	1.3	168	17.1	16.0	1	--	43955	1010947	56	J082946.71+011914.5	127.444625	1.32071	0.002	0.002	90	18.034	16.968	16.53	16.354	16.286	0.012	0.004	0.004	0.004	0.008	1237653664712097990	6	1	0000001010000000	3	2000.9155	10	3	-23	3	0	--	--	--	--	--	--
0.084138	127.443833	1.336041	0.08	0.08	17	08294651+0120097	15.739	0.077	0.078	15.4	14.99	0.09	0.09	15.1	15.115	0.143	0.143	6.9	AAC	222	111	000	260616	45.9	334	804019748	0	0	804019721	s	2000-01-30	57	223.457	22.383	-18.0	2451573.674	0.67	0.72	1.62	15.664	0.134	14.935	0.114	15.21	0.537	4825	234	se	0	1	U	0.3	159	19.6	17.9	1	--	43955	1010947	56	J082946.52+012009.6	127.44385	1.336025	0.005	0.004	90	22.312	19.735	18.286	17.493	17.054	0.236	0.015	0.008	0.006	0.012	1237653664712098272	6	1	0000001010000000	3	2000.9155	7	3	-1	3	0	--	--	--	--	--	--
0.233934	127.551124	1.274191	0.2	0.19	32	08301226+0116270	16.523	0.138	0.139	7.5	15.978	0.178	0.178	6.1	15.626	--	--	--	BCU	220	110	000	60600	53.1	132	804040612	0	0	804040583	s	2000-01-30	58	223.572	22.447	27.4	2451573.6814	0.86	1.1	--	17.253	0.528	15.72	0.401	--	--	4606	225	sw	0	1	U	0.5	205	18.2	17.3	1	--	43956	1010984	221	J083012.27+011627.3	127.55114	1.274254	0.003	0.003	90	19.88	18.211	17.598	17.39	17.337	0.035	0.006	0.006	0.006	0.015	1237653664712163789	6	1	0000001010000000	3	2000.9155	0	3	0	3	0	--	--	--	--	--	--
0.264938	127.562524	1.284466	0.24	0.23	15	08301500+0117040	16.738	0.167	0.167	6.1	15.513	0.136	0.136	9.3	15.487	0.254	0.254	4.9	CBD	222	111	000	60606	55.2	228	804040583	0	0	804040560	s	2000-01-30	58	223.568	22.462	-13.6	2451573.6814	0.98	0.8	0.97	16.359	0.225	15.246	0.216	15.222	0.457	4643	238	se	0	1	U	0.3	317	19.4	18.0	1	--	43956	1010984	221	J083014.99+011703.8	127.562496	1.284398	0.005	0.005	90	21.814	19.336	18.261	17.816	17.541	0.157	0.012	0.007	0.008	0.018	1237653664712163804	6	1	0000001010000100	3	2000.9155	-5	4	2	4	0	--	--	--	--	--	--
0.047465	127.631018	1.313059	0.09	0.06	90	08303144+0118470	12.95	0.025	0.027	193.8	12.453	0.022	0.024	145.5	12.367	0.021	0.023	86.0	AAA	222	111	000	556666	23.2	308	804046284	0	0	804046275	s	2000-01-30	59	223.577	22.536	173.5	2451573.6837	0.87	0.73	1.14	12.957	0.009	12.482	0.036	12.416	0.03	4743	79	sw	0	1	U	0.4	216	15.5	13.9	1	--	43957	1010993	56	J083031.44+011846.9	127.63102	1.313046	0.001	0.001	90	17.114	15.093	14.331	14.074	13.966	0.008	0.003	0.003	0.003	0.004	1237653664712163644	6	1	0000201090061010	3	2000.9155	-6	3	-5	3	0	--	--	--	--	--	--
0.010768	127.608273	1.305259	0.07	0.06	90	08302598+0118189	14.88	0.035	0.037	33.9	14.5	0.048	0.049	23.7	14.404	0.079	0.08	13.2	AAA	222	111	000	663606	50.4	335	804040490	0	0	804040515	s	2000-01-30	58	223.572	22.512	-178.3	2451573.6814	0.91	1.27	0.77	14.809	0.075	14.467	0.125	14.553	0.117	4718	74	se	0	1	U	0.2	208	16.6	15.7	1	--	43956	1010983	209	J083025.98+011818.9	127.608273	1.305256	0.001	0.001	90	17.94	16.558	16.052	15.874	15.801	0.011	0.004	0.004	0.004	0.006	1237653664712163561	6	1	0000301090020010	3	2000.9155	0	3	1	3	0	--	--	--	--	--	--
0.04973	127.602283	1.317923	0.07	0.06	90	08302454+0119045	12.983	0.023	0.026	194.6	12.679	0.021	0.023	126.6	12.677	0.024	0.026	64.7	AAA	222	111	00s	665566	47.1	14	804040463	0	0	804040490	s	2000-01-30	58	223.557	22.513	-156.7	2451573.6814	0.86	0.68	1.02	12.965	0.024	12.726	0.059	12.712	0.033	4763	95	se	0	1	U	0.2	257	14.8	13.8	1	--	43956	1010983	209	J083024.55+011904.5	127.602295	1.31793	0.0	0.0	90	15.577	14.329	13.951	13.825	13.813	0.004	0.003	0.003	0.003	0.004	1237653664712163548	6	1	0000201090021010	3	2000.9155	-2	3	5	3	0	--	--	--	--	--	--
0.051722	127.625964	1.317053	0.1	0.07	89	08303023+0119013	15.032	0.053	0.055	28.5	14.667	0.058	0.058	18.9	14.747	0.114	0.115	9.6	AAB	222	111	000	662606	23.2	128	804046275	0	0	804046284	s	2000-01-30	59	223.57	22.533	191.7	2451573.6837	0.81	1.05	1.06	15.007	0.051	14.672	0.118	14.601	0.18	4758	61	sw	1	1	U	0.5	222	16.5	15.8	1	--	43957	1010993	56	J083030.23+011901.4	127.625977	1.317059	0.001	0.001	90	17.47	16.387	16.033	15.893	15.884	0.009	0.003	0.004	0.004	0.007	1237653664712163639	6	1	0000901294020048	3	2000.9155	-4	3	-3	3	0	--	--	--	--	--	--
0.058186	127.632868	1.320028	0.09	0.06	90	08303188+0119121	14.089	0.031	0.033	67.9	13.45	0.027	0.029	58.1	13.164	0.037	0.038	41.3	AAA	222	111	000	666666	26.0	195	804046275	0	0	804046292	s	2000-01-30	59	223.571	22.541	166.9	2451573.6837	0.96	1.06	1.16	14.081	0.025	13.436	0.051	13.136	0.074	4768	86	sw	0	1	U	0.2	285	18.8	16.8	1	--	43957	1010993	56	J083031.88+011912.0	127.632866	1.320012	0.002	0.002	90	21.124	18.585	17.147	16.02	15.419	0.087	0.008	0.005	0.004	0.006	1237653664712163873	6	1	0000B01010020010	3	2000.9155	-2	3	5	3	0	--	--	--	--	--	--
0.133695	127.605526	1.330598	0.08	0.07	83	08302532+0119501	15.385	0.047	0.049	21.3	14.711	0.069	0.069	19.5	14.738	0.126	0.127	9.7	AAB	222	111	000	463616	47.1	194	804040490	0	0	804040463	s	2000-01-30	58	223.547	22.522	-168.4	2451573.6814	0.89	0.84	1.07	15.485	0.113	14.627	0.083	14.693	0.39	4809	84	se	0	1	U	0.9	146	19.8	18.2	1	--	43956	1010983	209	J083025.33+011950.1	127.605563	1.330594	0.006	0.006	90	22.346	20.158	18.713	17.475	16.823	0.233	0.02	0.009	0.006	0.011	1237653664712163947	6	1	0000001010000000	3	2000.9155	16	4	-12	4	0	--	--	--	--	--	--
0.079876	127.629259	1.333658	0.13	0.13	109	08303102+0120011	15.936	0.096	0.097	12.4	15.501	0.109	0.109	8.8	15.314	0.186	0.186	5.7	ABC	222	111	000	60606	11.0	11	804046324	0	0	804046318	s	2000-01-30	59	223.556	22.544	179.8	2451573.6837	1.1	0.82	1.06	15.804	0.184	15.783	0.331	15.466	0.36	4817	73	sw	0	1	U	0.3	174	17.6	16.6	1	--	43957	1010993	56	J083031.01+012001.2	127.629246	1.333676	0.002	0.002	90	18.748	17.394	16.91	16.75	16.678	0.018	0.005	0.004	0.005	0.01	1237653664712163663	6	1	0000201010021010	3	2000.9155	3	3	-1	3	0	--	--	--	--	--	--
0.14186	127.647894	1.347275	0.08	0.06	88	08303549+0120501	13.56	0.026	0.029	110.5	13.149	0.029	0.03	76.6	13.062	0.034	0.035	45.4	AAA	222	111	000	666655	29.2	66	804046366	0	0	804046354	s	2000-01-30	59	223.553	22.567	112.8	2451573.6837	0.94	0.73	0.97	13.574	0.037	13.149	0.064	13.027	0.044	4866	140	sw	0	1	U	0.4	270	15.5	14.4	1	--	43957	1010993	56	J083035.49+012050.0	127.647878	1.347239	0.001	0.001	90	16.661	15.155	14.645	14.501	14.433	0.006	0.003	0.003	0.003	0.004	1237653664712228882	6	1	0000201090021010	3	2000.9155	-7	3	2	3	0	--	--	--	--	--	--
0.119708	127.629856	1.336659	0.09	0.07	88	08303116+0120119	15.624	0.075	0.076	16.5	15.116	0.078	0.078	12.5	14.845	0.124	0.124	8.8	AAB	222	111	000	360606	11.0	191	804046318	0	0	804046324	s	2000-01-30	59	223.554	22.546	177.7	2451573.6837	0.68	1.11	1.42	15.536	0.113	15.248	0.158	15.116	0.077	4828	75	sw	0	1	U	0.0	257	17.6	16.7	1	--	43957	1010993	56	J083031.16+012011.8	127.629832	1.336636	0.002	0.002	90	19.136	17.608	16.965	16.733	16.608	0.022	0.005	0.004	0.005	0.01	1237653664712163664	6	1	0000201010021010	3	2000.9155	-1	3	2	3	0	--	--	--	--	--	--
0.131932	127.641134	1.354178	0.08	0.06	90	08303387+0121150	14.449	0.035	0.037	48.7	13.844	0.024	0.026	40.4	13.495	0.045	0.045	30.4	AAA	222	111	000	666666	27.6	343	804046390	0	0	804046376	s	2000-01-30	59	223.543	22.564	137.1	2451573.6837	1.07	1.29	0.97	14.423	0.032	13.864	0.07	13.529	0.06	4891	116	sw	0	1	U	1.2	264	18.9	16.8	1	--	43957	1010994	68	J083033.87+012114.9	127.641123	1.354143	0.002	0.002	90	21.451	18.88	17.466	16.381	15.814	0.104	0.009	0.006	0.005	0.007	1237653622299624080	6	1	0000001010000300	3	2000.9076	-26	3	-1	3	0	--	--	--	--	--	--
0.093665	127.659372	1.344964	0.1	0.08	90	08303824+0120418	15.722	0.069	0.07	15.1	15.19	0.098	0.099	11.7	15.191	0.169	0.169	6.4	AAC	222	111	000	160606	24.7	324	804046366	0	0	804046346	s	2000-01-30	59	223.561	22.576	71.5	2451573.6837	1.17	0.97	1.11	15.707	0.12	15.087	0.098	15.275	0.337	4858	181	sw	0	1	U	0.3	190	17.6	16.5	1	--	43957	1010993	56	J083038.24+012041.7	127.659362	1.34494	0.002	0.002	90	18.6	17.337	16.87	16.709	16.619	0.016	0.004	0.004	0.005	0.01	1237653664712228899	6	0	0000B01012020014	3	2000.9155	2	3	-3	3	0	--	--	--	--	--	--
0.220468	127.665886	1.349635	0.08	0.06	90	08303981+0120586	9.368	0.023	0.026	5250.9	8.8	0.063	0.065	4206.4	8.761	0.019	0.021	2382.4	AAA	212	111	000	446666	28.9	234	804046346	0	0	804046361	s	2000-01-30	59	223.56	22.584	48.0	2451573.6837	0.75	0.74	0.6	9.362	0.01	8.88	0.05	8.745	0.012	4875	205	sw	0	1	T	0.3	24	11.62	10.83	2	--	43957	1010994	68	J083039.81+012058.4	127.665881	1.349574	0.045	0.044	0	14.889	11.57	10.801	10.533	10.959	0.006	0.001	0.001	0.001	0.002	1237653664712228897	6	0	0001B81092061014	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...	...
0.102943	127.608503	1.657705	0.06	0.06	90	08302604+0139277	13.408	0.023	0.026	131.6	12.912	0.026	0.027	102.1	12.756	0.03	0.031	60.1	AAA	222	111	000	666666	56.4	309	804039681	0	0	804039702	s	2000-01-30	58	223.238	22.682	-179.1	2451573.6812	1.11	1.0	1.03	13.392	0.019	12.891	0.042	12.723	0.036	5986	73	se	0	1	U	0.1	224	15.9	14.4	1	--	43956	1010982	198	J083026.04+013927.6	127.608509	1.657677	0.001	0.001	90	17.666	15.64	14.844	14.557	14.429	0.01	0.003	0.003	0.003	0.004	1237653665249034440	6	1	0000001010020000	3	2000.9155	0	3	2	3	0	--	--	--	--	--	--
0.075051	127.61793	1.670363	0.06	0.06	90	08302830+0140133	12.331	0.021	0.024	354.8	11.852	0.021	0.023	271.1	11.776	0.022	0.024	148.3	AAA	222	111	000	665566	48.7	97	804047087	0	0	804039676	s	2000-01-30	58	223.231	22.697	-213.0	2451573.6812	0.97	0.85	0.87	12.325	0.015	11.863	0.052	11.795	0.02	6032	39	se	1	1	U	1.0	197	14.7	13.2	1	--	43956	1010982	198	J083028.30+014013.2	127.617924	1.670343	0.047	0.041	90	15.934	14.383	14.122	13.79	13.374	0.005	0.003	0.01	0.002	0.004	1237653665249034466	6	0	00009810100E1000	3	2000.9155	-9	3	-18	3	0	--	--	--	--	--	--
0.057893	127.631377	1.668806	0.06	0.06	90	08303153+0140077	14.417	0.037	0.039	50.2	14.078	0.048	0.049	32.6	14.041	0.059	0.059	18.4	AAA	222	111	000	666636	20.5	185	804047077	0	0	804047087	s	2000-01-30	59	223.239	22.708	172.2	2451573.6839	0.89	0.69	1.07	14.356	0.027	14.077	0.054	14.032	0.1	6024	80	sw	0	1	U	0.1	320	15.9	15.1	1	--	43957	1010995	80	J083031.53+014007.6	127.631383	1.668791	0.001	0.001	90	17.192	15.962	15.507	15.334	15.277	0.008	0.003	0.003	0.003	0.005	1237653665249034525	6	1	0000001010000200	3	2000.9155	0	3	6	3	0	--	--	--	--	--	--
0.165563	127.59634	1.667581	0.11	0.11	45	08302312+0140032	15.932	0.079	0.08	12.9	15.564	0.129	0.129	8.9	15.494	0.207	0.207	4.8	ABD	222	111	000	260605	56.4	129	804039702	0	0	804039681	s	2000-01-30	58	223.222	22.677	-135.3	2451573.6812	1.42	0.89	0.99	15.856	0.152	15.713	0.139	15.256	0.593	6022	117	se	0	1	U	0.4	231	17.2	16.6	1	--	43956	1010982	198	J083023.13+014003.2	127.596382	1.667562	0.002	0.002	90	18.415	17.29	16.909	16.768	16.72	0.015	0.004	0.004	0.005	0.01	1237653665249034426	6	1	0000001010000000	3	2000.9155	-1	3	0	3	0	--	--	--	--	--	--
0.027431	127.607412	1.680264	0.07	0.07	45	08302577+0140489	15.187	0.045	0.047	25.6	14.768	0.052	0.052	18.5	14.635	0.105	0.105	10.7	AAA	222	111	000	462606	19.3	341	804039639	0	0	804039656	s	2000-01-30	58	223.216	22.692	-175.1	2451573.6811	0.84	0.99	0.66	15.267	0.083	14.939	0.139	14.272	0.074	6068	77	se	0	1	U	0.4	196	17.2	16.2	1	--	43956	1010982	198	J083025.78+014048.9	127.607419	1.680261	0.002	0.002	90	18.913	17.221	16.561	16.319	16.212	0.02	0.004	0.004	0.004	0.008	1237653665249034442	6	1	0000001010000200	3	2000.9155	0	3	-4	3	0	--	--	--	--	--	--
0.078476	127.605675	1.685328	0.07	0.06	4	08302536+0141071	15.208	0.04	0.042	25.1	14.614	0.05	0.051	21.3	14.529	0.082	0.083	11.7	AAA	222	111	000	562615	19.3	161	804039656	0	0	804039639	s	2000-01-30	58	223.21	22.693	-168.9	2451573.6811	1.23	0.93	0.6	15.238	0.074	14.743	0.124	14.394	0.152	6086	83	se	0	1	U	1.0	201	17.0	16.1	1	--	43956	1010982	198	J083025.36+014107.1	127.605681	1.685307	0.002	0.002	90	18.892	17.158	16.472	16.221	16.11	0.019	0.004	0.004	0.004	0.008	1237653665249034437	6	1	0000201010021010	3	2000.9155	-8	3	-19	3	0	--	--	--	--	--	--
0.649439	127.59557	1.693948	0.24	0.21	14	08302293+0141382	16.451	0.144	0.144	8.0	15.841	0.166	0.166	6.9	15.403	0.221	0.221	5.3	BCD	222	111	000	160506	47.8	130	804039639	0	0	804039617	s	2000-01-30	58	223.197	22.689	-132.5	2451573.6811	1.16	1.11	0.98	16.066	0.3	15.271	0.191	14.673	0.14	6117	120	se	0	1	U	0.5	306	18.5	16.9	1	--	43956	1010982	198	J083022.94+014137.5	127.595605	1.693771	0.01	0.008	90	20.248	18.532	17.65	17.267	16.938	0.087	0.01	0.008	0.008	0.022	1237653665249034731	3	1	0000201010021110	3	2000.9155	-6	3	-4	3	0	--	--	--	--	--	--
0.100329	127.612403	1.684011	0.07	0.06	86	08302697+0141024	14.826	0.049	0.05	35.7	14.37	0.071	0.072	26.7	14.421	0.09	0.09	13.0	AAA	222	111	000	665526	3.4	355	804047124	0	0	804039648	s	2000-01-30	58	223.215	22.699	-193.1	2451573.6811	4.16	2.34	2.12	14.585	0.042	14.051	0.054	13.864	0.142	6081	59	se	1	1	U	1.1	181	16.1	15.0	1	--	43956	1010982	198	J083026.97+014102.3	127.61241	1.683984	0.001	0.001	90	17.587	16.377	15.934	15.773	15.723	0.01	0.003	0.004	0.004	0.006	1237653665249034447	6	1	0000201010020010	3	2000.9155	2	4	-2	4	0	--	--	--	--	--	--
3.276802	127.612403	1.684011	0.07	0.06	86	08302697+0141024	14.826	0.049	0.05	35.7	14.37	0.071	0.072	26.7	14.421	0.09	0.09	13.0	AAA	222	111	000	665526	3.4	355	804047124	0	0	804039648	s	2000-01-30	58	223.215	22.699	-193.1	2451573.6811	4.16	2.34	2.12	14.585	0.042	14.051	0.054	13.864	0.142	6081	59	se	1	1	U	1.1	181	16.1	15.0	1	--	43956	1010982	198	J083026.97+014105.7	127.612384	1.684921	0.003	0.003	90	21.675	19.061	17.815	17.265	16.967	0.142	0.012	0.007	0.006	0.013	1237653665249034448	6	1	0000601012020010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
0.007957	127.626044	1.687986	0.06	0.06	73	08303025+0141167	14.101	0.032	0.034	67.2	13.812	0.036	0.037	41.6	13.789	0.051	0.051	23.2	AAA	222	111	000	666656	49.8	19	804047159	0	0	804047134	s	2000-01-30	59	223.218	22.712	191.4	2451573.684	0.84	1.04	1.05	14.155	0.022	13.925	0.089	13.796	0.148	6093	61	sw	0	1	U	0.1	188	15.9	14.9	1	--	43957	1010995	80	J083030.25+014116.7	127.626046	1.687985	0.001	0.001	90	17.122	15.664	15.198	15.042	15.005	0.008	0.003	0.003	0.003	0.005	1237653665249034511	6	1	0000201090021010	3	2000.9155	0	3	4	3	0	--	--	--	--	--	--
0.245498	127.612321	1.684947	0.11	0.11	125	08302695+0141058	14.733	--	--	--	15.055	0.086	0.087	13.2	14.616	--	--	--	UAU	20	10	0c0	5600	3.4	175	804039648	0	0	804047124	s	2000-01-30	59	223.214	22.699	240.8	2451573.684	--	0.93	--	--	--	14.188	0.073	--	--	6082	12	sw	0	0	U	2.3	352	16.1	15.0	1	--	43957	1010995	80	J083026.97+014105.7	127.612384	1.684921	0.003	0.003	90	21.675	19.061	17.815	17.265	16.967	0.142	0.012	0.007	0.006	0.013	1237653665249034448	6	1	0000601012020010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
3.481436	127.612321	1.684947	0.11	0.11	125	08302695+0141058	14.733	--	--	--	15.055	0.086	0.087	13.2	14.616	--	--	--	UAU	20	10	0c0	5600	3.4	175	804039648	0	0	804047124	s	2000-01-30	59	223.214	22.699	240.8	2451573.684	--	0.93	--	--	--	14.188	0.073	--	--	6082	12	sw	0	0	U	2.3	352	16.1	15.0	1	--	43957	1010995	80	J083026.97+014102.3	127.61241	1.683984	0.001	0.001	90	17.587	16.377	15.934	15.773	15.723	0.01	0.003	0.004	0.004	0.006	1237653665249034447	6	1	0000201010020010	3	2000.9155	2	4	-2	4	0	--	--	--	--	--	--
0.011467	127.580761	1.701335	0.06	0.06	45	08301938+0142048	14.631	0.036	0.038	42.7	14.208	0.044	0.045	31.0	14.056	0.066	0.067	18.2	AAA	222	111	000	666646	56.6	22	804039566	0	0	804039599	s	2000-01-30	58	223.182	22.679	-79.2	2451573.6811	0.83	0.97	0.94	14.594	0.06	14.152	0.074	13.985	0.209	6144	173	se	0	1	U	0.4	275	16.4	15.4	1	--	43956	1010982	198	J083019.38+014204.8	127.580762	1.701338	0.001	0.001	90	17.735	16.283	15.75	15.565	15.514	0.01	0.003	0.004	0.004	0.006	1237653665249034400	6	1	0000201090021010	3	2000.9155	-8	3	5	3	0	--	--	--	--	--	--
0.238458	127.559304	1.696663	0.14	0.13	8	08301423+0141479	16.043	0.077	0.078	11.6	15.493	0.121	0.122	9.5	15.201	0.162	0.162	6.3	ABC	222	111	000	60606	58.0	184	804039655	0	0	804039606	s	2000-01-30	58	223.175	22.658	-2.0	2451573.6811	0.98	0.81	1.33	16.321	0.224	15.372	0.186	15.02	0.241	6127	250	se	0	1	U	0.3	270	20.2	18.8	1	--	43956	1010982	198	J083014.24+014147.7	127.559336	1.696605	0.007	0.007	90	22.955	20.536	19.013	17.915	17.363	0.396	0.025	0.011	0.008	0.016	1237653665249034814	6	1	0000001010000100	3	2000.9155	0	4	2	4	0	--	--	--	--	--	--
0.150187	127.594693	1.712073	0.06	0.06	90	08302272+0142434	15.06	0.036	0.038	28.7	14.42	0.055	0.056	25.5	14.219	0.066	0.067	15.6	AAA	222	111	000	662605	31.6	295	804039566	0	0	804039577	s	2000-01-30	58	223.179	22.697	-129.4	2451573.6811	1.02	1.12	0.85	15.063	0.059	14.503	0.168	14.731	0.317	6182	123	se	0	1	U	0.2	132	17.9	16.4	1	--	43956	1010982	198	J083022.72+014243.3	127.594672	1.712037	0.002	0.002	90	20.138	17.814	16.762	16.374	16.179	0.043	0.005	0.004	0.004	0.008	1237653665249034728	6	1	0000001010000000	3	2000.9155	2	3	-2	3	0	--	--	--	--	--	--
0.108212	127.586772	1.715849	0.07	0.07	45	08302082+0142570	15.723	0.066	0.067	15.6	14.973	0.06	0.06	15.3	14.812	0.12	0.12	9.1	AAB	222	111	000	360605	28.2	0	804039552	0	0	804039566	s	2000-01-30	58	223.171	22.691	-100.9	2451573.6811	1.08	0.96	1.11	15.705	0.181	15.211	0.16	14.664	0.119	6196	151	se	0	1	0	--	--	--	--	0	--	43956	1010982	198	J083020.82+014256.9	127.586748	1.715831	0.009	0.008	90	23.703	21.006	19.374	17.925	17.114	0.706	0.037	0.014	0.008	0.013	1237653665249034825	6	1	0000201010000010	3	2000.9155	-14	5	3	5	0	--	--	--	--	--	--
0.240613	127.447192	1.647533	0.24	0.19	81	08294732+0138511	16.529	0.148	0.149	7.4	16.028	0.195	0.195	5.8	15.104	0.176	0.176	6.9	BCC	222	111	000	60506	15.9	129	804020424	0	0	804020436	s	2000-01-30	57	223.163	22.536	-30.1	2451573.6742	1.12	0.98	0.86	15.861	0.062	15.148	0.204	14.526	0.224	5946	222	se	0	1	U	0.7	220	19.0	18.0	1	--	43955	1010949	80	J082947.33+013851.2	127.447247	1.647571	0.015	0.01	90	20.622	19.316	18.119	17.636	17.285	0.111	0.017	0.01	0.01	0.027	1237653665248969240	3	1	0000201010020210	3	2000.9155	1	3	-3	3	0	--	--	--	--	--	--
0.094562	127.433953	1.655758	0.13	0.11	176	08294414+0139207	16.065	0.095	0.096	11.4	15.5	0.113	0.113	9.4	15.384	0.183	0.183	5.3	ABC	222	111	000	61606	17.8	349	804020468	0	0	804020450	s	2000-01-30	57	223.149	22.529	17.6	2451573.6742	1.72	1.15	0.98	16.668	0.24	15.589	0.429	17.98	5.025	5976	235	sw	0	1	U	0.4	199	17.8	17.2	1	--	43955	1010949	80	J082944.15+013920.6	127.433977	1.655747	0.003	0.002	90	19.52	17.923	17.321	17.065	16.941	0.029	0.005	0.005	0.005	0.012	1237653665248969122	6	1	0000201010020010	3	2000.9155	2	3	-3	3	0	--	--	--	--	--	--
0.107628	127.432986	1.660608	0.06	0.06	0	08294391+0139381	13.003	0.018	0.022	191.1	12.478	0.027	0.029	152.3	12.418	0.027	0.029	82.1	AAA	222	111	000	666655	17.8	169	804020450	0	0	804020468	s	2000-01-30	57	223.144	22.53	21.0	2451573.6742	0.85	0.92	1.11	13.021	0.025	12.471	0.062	12.413	0.053	5993	232	sw	0	1	U	0.4	261	15.5	14.3	1	--	43955	1010949	80	J082943.92+013938.1	127.433013	1.660595	0.001	0.001	90	16.96	15.138	14.439	17.193	14.023	0.007	0.003	0.003	0.017	0.004	1237653665248968917	6	1	0000B81090061010	3	2000.9155	-6	3	3	3	0	--	--	--	--	--	--
0.717615	127.440603	1.667036	0.06	0.06	17	08294574+0140013	12.716	0.031	0.033	248.9	12.125	0.038	0.039	210.8	11.889	0.027	0.029	133.6	AAA	222	111	000	666655	35.9	230	804020468	0	0	804020477	s	2000-01-30	57	223.142	22.54	-6.4	2451573.6742	2.54	2.87	3.03	12.572	0.01	11.918	0.04	11.787	0.032	6016	246	se	0	1	U	0.5	221	16.1	14.0	1	--	43955	1010949	80	J082945.69+014001.3	127.440404	1.667048	0.001	0.001	90	19.832	17.09	15.583	15.047	14.765	0.041	0.004	0.003	0.003	0.005	1237653665248968949	6	1	0000601010000010	3	2000.9155	-23	3	-2	3	0	--	--	--	--	--	--
0.837076	127.440603	1.667036	0.06	0.06	17	08294574+0140013	12.716	0.031	0.033	248.9	12.125	0.038	0.039	210.8	11.889	0.027	0.029	133.6	AAA	222	111	000	666655	35.9	230	804020468	0	0	804020477	s	2000-01-30	57	223.142	22.54	-6.4	2451573.6742	2.54	2.87	3.03	12.572	0.01	11.918	0.04	11.787	0.032	6016	246	se	0	1	U	0.5	221	16.1	14.0	1	--	43955	1010949	80	J082945.80+014001.2	127.440834	1.667009	0.001	0.001	90	19.018	16.383	15.181	14.61	14.284	0.021	0.003	0.003	0.003	0.004	1237653665248968951	6	1	0000201190000010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
0.099214	127.449076	1.681583	0.06	0.06	0	08294777+0140536	14.879	0.032	0.035	34.0	14.219	0.05	0.051	30.6	14.108	0.059	0.06	17.3	AAA	222	111	000	666606	60.6	210	804020477	0	0	804020514	s	2000-01-30	57	223.132	22.554	-36.9	2451573.6742	0.86	0.7	0.85	14.927	0.05	14.197	0.063	14.262	0.097	6068	215	se	0	1	U	0.4	334	18.4	16.6	1	--	43955	1010949	80	J082947.78+014053.6	127.449097	1.681565	0.002	0.002	90	21.23	18.473	17.089	16.43	16.053	0.099	0.007	0.005	0.004	0.007	1237653665248969156	6	1	0000001010000100	3	2000.9155	1	3	12	3	0	--	--	--	--	--	--
0.144389	127.429017	1.681421	0.07	0.07	17	08294296+0140531	15.091	0.055	0.057	27.9	14.806	0.067	0.067	17.8	14.78	0.116	0.117	9.3	AAB	222	111	000	660506	44.1	347	804020529	0	0	804020512	s	2000-01-30	57	223.122	22.537	35.3	2451573.6742	0.77	0.84	0.97	15.029	0.029	14.728	0.085	14.707	0.217	6068	217	sw	0	1	U	0.4	285	16.6	15.8	1	--	43955	1010949	80	J082942.97+014053.0	127.429055	1.681408	0.001	0.001	90	17.678	16.556	16.163	16.025	15.969	0.01	0.004	0.004	0.004	0.007	1237653665248968906	6	1	0000001010000000	3	2000.9155	-5	3	5	3	0	--	--	--	--	--	--
0.325286	127.426213	1.693338	0.28	0.27	63	08294229+0141360	16.725	0.179	0.179	6.2	15.843	0.154	0.154	6.9	15.57	0.229	0.229	4.5	CCD	222	111	c00	50606	25.6	16	804020540	0	0	804020529	s	2000-01-30	57	223.109	22.54	45.4	2451573.6743	0.96	1.0	1.11	16.719	0.4	15.882	0.416	15.431	0.414	6111	207	sw	0	1	U	0.6	196	19.4	18.0	1	--	43955	1010949	80	J082942.27+014136.2	127.426161	1.693412	0.005	0.004	90	24.634	19.477	18.293	17.83	17.653	0.966	0.012	0.008	0.008	0.019	1237653665248968896	6	1	0000201010061110	3	2000.9155	-4	3	0	3	0	--	--	--	--	--	--
0.148096	127.428133	1.700177	0.06	0.06	0	08294275+0142006	9.791	0.021	0.024	3681.5	9.505	0.024	0.026	2354.6	9.458	0.019	0.021	1253.8	AAA	222	111	000	666666	25.6	196	804020529	0	0	804020540	s	2000-01-30	57	223.104	22.545	38.5	2451573.6743	0.74	1.05	0.87	9.779	0.009	9.5	0.034	9.451	0.02	6136	214	sw	0	1	T	0.1	52	11.48	10.79	1	--	43955	1010949	80	J082942.74+014200.5	127.428097	1.700157	0.399	0.399	90	14.893	11.219	10.824	10.683	10.954	0.011	0.001	0.001	0.001	0.002	1237653665248968895	3	0	0001B80090061010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
0.022635	127.449164	1.708055	0.06	0.06	17	08294779+0142289	14.457	0.035	0.037	50.1	14.007	0.031	0.032	37.3	13.923	0.06	0.061	20.5	AAA	222	111	000	666656	48.4	12	804020588	0	0	804020559	s	2000-01-30	57	223.107	22.567	-37.2	2451573.6743	1.09	0.91	1.23	14.448	0.059	14.061	0.081	13.887	0.102	6164	215	se	0	1	U	0.3	248	16.8	15.4	1	--	43955	1010949	80	J082947.80+014228.9	127.449166	1.708049	0.001	0.001	90	18.321	16.546	15.861	15.599	15.448	0.014	0.004	0.004	0.004	0.006	1237653665248968963	6	1	0000001010000000	3	2000.9155	-3	3	3	3	0	--	--	--	--	--	--
0.304171	127.492406	1.685115	0.31	0.3	70	08295817+0141064	16.237	0.106	0.106	9.7	15.647	0.136	0.136	8.2	15.683	0.239	0.239	4.1	BBD	222	111	000	160606	24.3	194	804020509	0	0	804020518	s	2000-01-30	57	223.151	22.594	-192.8	2451573.6743	1.09	0.75	1.03	16.086	0.16	15.514	0.191	15.639	0.359	6081	59	se	1	1	0	--	--	--	--	0	--	43955	1010949	80	J082958.15+014106.4	127.492324	1.685136	0.011	0.01	90	23.499	21.018	19.615	18.347	17.631	0.608	0.036	0.017	0.01	0.019	1237653665249034852	6	1	0000001010000100	3	2000.9155	18	5	-15	5	0	--	--	--	--	--	--
0.133341	127.503105	1.700905	0.06	0.06	90	08300074+0142032	14.571	0.039	0.041	45.1	14.218	0.031	0.032	30.7	14.104	0.064	0.065	17.4	AAA	222	111	000	665606	24.1	353	804039583	0	0	804039600	s	2000-01-30	58	223.142	22.611	200.2	2451573.6811	1.34	0.99	0.87	14.543	0.027	14.287	0.153	14.297	0.141	6143	53	sw	1	1	U	0.5	268	16.2	15.2	1	--	43956	1010982	198	J083000.75+014203.1	127.503134	1.700882	0.001	0.001	90	17.393	16.059	15.603	15.448	15.406	0.009	0.003	0.004	0.004	0.006	1237653665249034289	6	1	0000201090020010	3	2000.9155	-5	3	4	3	0	--	--	--	--	--	--
0.273005	127.477304	1.697812	0.23	0.23	42	08295455+0141521	16.685	0.154	0.155	6.4	15.942	0.16	0.161	6.3	15.42	0.22	0.22	5.2	CCD	222	111	000	60606	21.5	291	804020539	0	0	804020536	s	2000-01-30	57	223.131	22.587	-138.5	2451573.6743	0.9	0.94	1.0	16.455	0.262	16.252	0.612	15.216	0.483	6127	114	se	0	1	U	0.3	155	19.1	18.1	1	--	43955	1010949	80	J082954.54+014152.3	127.477259	1.697873	0.004	0.004	90	21.384	19.091	18.127	17.814	17.583	0.11	0.01	0.007	0.007	0.018	1237653665248969180	6	1	0000001010000100	3	2000.9155	3	3	4	3	0	--	--	--	--	--	--
0.231895	127.471749	1.699981	0.15	0.15	145	08295321+0141599	16.278	0.12	0.121	9.4	15.646	0.138	0.138	8.2	15.792	--	--	--	BBU	220	110	000	60600	21.5	111	804020536	0	0	804020539	s	2000-01-30	57	223.127	22.583	-118.5	2451573.6743	0.82	0.93	--	16.158	0.12	15.666	0.136	--	--	6134	134	se	0	1	U	0.5	178	18.2	17.1	1	--	43955	1010949	80	J082953.20+014159.8	127.471686	1.699968	0.003	0.003	90	19.801	18.25	17.648	17.445	17.292	0.034	0.006	0.006	0.006	0.015	1237653665248969172	6	1	0000001010000000	3	2000.9155	0	3	-6	3	0	--	--	--	--	--	--
0.108018	127.485472	1.701631	0.07	0.07	17	08295651+0142058	15.286	0.047	0.049	23.3	14.805	0.069	0.069	17.9	14.59	0.102	0.102	11.1	AAA	222	111	000	361506	32.4	245	804020536	0	0	804020544	s	2000-01-30	57	223.132	22.596	-167.8	2451573.6743	1.03	1.1	1.02	15.41	0.107	14.79	0.127	14.331	0.225	6140	84	se	0	1	U	0.5	227	17.9	16.6	1	--	43955	1010949	80	J082956.51+014205.7	127.485483	1.701603	0.002	0.002	90	19.856	17.73	16.86	16.541	16.35	0.036	0.005	0.004	0.004	0.009	1237653665249034558	6	1	0000001010020000	3	2000.9155	-4	3	-4	3	0	--	--	--	--	--	--
0.033205	127.50233	1.707568	0.06	0.06	90	08300055+0142272	13.442	0.023	0.026	127.5	12.837	0.024	0.026	109.4	12.652	0.029	0.03	66.2	AAA	222	111	000	666655	24.1	173	804039600	0	0	804039583	s	2000-01-30	58	223.135	22.614	203.0	2451573.6811	1.13	0.79	1.5	13.483	0.018	12.913	0.029	12.71	0.045	6167	50	sw	1	1	U	1.1	262	17.2	15.1	1	--	43956	1010982	198	J083000.56+014227.2	127.502332	1.707559	0.001	0.001	90	19.461	16.829	15.524	14.976	14.692	0.027	0.004	0.004	0.003	0.005	1237653665249034586	6	1	0000201010020010	3	2000.9155	-22	3	1	3	0	--	--	--	--	--	--
0.127126	127.469423	1.71372	0.12	0.11	101	08295266+0142493	16.124	0.097	0.098	10.8	15.408	0.101	0.102	10.3	15.34	0.186	0.186	5.6	AAC	222	111	000	60606	50.2	170	804020539	0	0	804020569	s	2000-01-30	57	223.112	22.588	-110.1	2451573.6743	0.99	0.99	0.93	16.256	0.269	15.929	0.347	15.574	0.328	6184	142	se	0	1	0	--	--	--	--	0	--	43955	1010949	80	J082952.66+014249.2	127.469418	1.713685	0.009	0.008	90	23.472	20.755	19.283	18.181	17.503	0.594	0.029	0.014	0.009	0.017	1237653665248969263	6	1	0000001010000100	3	2000.9155	-13	5	3	5	0	--	--	--	--	--	--
0.029366	127.451948	1.721205	0.06	0.06	0	08294846+0143163	12.459	0.019	0.023	315.4	12.056	0.024	0.026	224.7	11.969	0.023	0.024	124.1	AAA	222	111	000	666666	48.4	192	804020559	0	0	804020588	s	2000-01-30	57	223.096	22.576	-47.2	2451573.6743	0.74	0.74	0.86	12.47	0.019	12.038	0.046	11.973	0.029	6211	205	se	0	1	U	1.3	176	14.8	13.5	1	--	43955	1010949	80	J082948.46+014316.3	127.451955	1.721201	0.047	0.042	90	16.125	14.47	13.785	13.755	13.493	0.006	0.003	0.006	0.002	0.004	1237653665248968970	6	0	0000B81092061010	3	2000.9155	2	3	-24	3	0	--	--	--	--	--	--
0.475815	127.395474	1.69711	0.34	0.32	88	08293491+0141495	16.551	0.164	0.164	7.3	15.907	0.207	0.207	6.5	15.795	0.274	0.275	3.7	CED	222	111	000	60506	53.7	338	804020566	0	0	804020535	s	2000-01-30	57	223.089	22.515	156.0	2451573.6743	0.85	10.93	0.72	16.461	0.216	16.1	0.268	16.146	0.828	6125	97	sw	0	1	0	--	--	--	--	0	--	43955	1010949	80	J082934.93+014149.9	127.395566	1.697205	0.017	0.016	90	23.316	21.506	20.041	18.676	17.902	0.557	0.054	0.024	0.013	0.023	1237653665248969283	6	1	0100F01010021010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
0.063468	127.432292	1.717116	0.07	0.06	96	08294375+0143016	14.569	0.032	0.035	45.2	14.299	0.055	0.056	28.5	14.219	0.084	0.084	15.6	AAA	222	111	000	665614	22.8	14	804020593	0	0	804020581	s	2000-01-30	57	223.09	22.557	23.5	2451573.6743	0.9	1.15	0.65	14.552	0.05	14.172	0.086	14.225	0.229	6197	229	sw	0	1	U	0.3	198	16.4	15.3	1	--	43955	1010949	80	J082943.75+014301.6	127.432309	1.717121	0.001	0.001	90	17.453	16.137	15.683	15.532	15.469	0.009	0.003	0.004	0.004	0.006	1237653665248968924	6	1	0000001010020200	3	2000.9155	1	3	-1	3	0	--	--	--	--	--	--
0.078846	127.433857	1.723263	0.07	0.07	17	08294412+0143237	15.678	0.08	0.081	16.3	15.207	0.105	0.105	12.3	14.965	0.138	0.138	7.9	AAB	222	111	ccc	665616	4.5	317	804020596	0	0	804020593	s	2000-01-30	57	223.085	22.561	17.9	2451573.6743	1.14	0.83	1.22	14.517	0.097	14.072	0.112	14.179	0.144	6219	235	sw	0	1	U	4.0	139	15.8	14.4	1	--	43955	1010949	80	J082944.13+014323.7	127.433877	1.723272	0.007	0.007	90	23.802	20.411	19.039	17.728	17.018	0.743	0.024	0.012	0.007	0.013	1237653665248968930	6	1	0000B01812021010	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--
0.036173	127.531902	1.729757	0.06	0.06	90	08300765+0143471	14.155	0.033	0.036	66.1	13.84	0.032	0.033	43.4	13.806	0.048	0.049	22.9	AAA	222	111	000	666646	14.1	82	804039539	0	0	804039541	s	2000-01-30	58	223.13	22.65	96.6	2451573.6811	1.03	0.88	1.01	14.136	0.051	13.972	0.048	13.85	0.118	6247	156	sw	0	1	U	0.2	230	15.8	15.0	1	--	43956	1010982	198	J083007.65+014347.1	127.531908	1.729749	0.001	0.001	90	17.145	15.741	15.246	15.079	15.039	0.008	0.003	0.003	0.003	0.005	1237653665249034332	6	1	0000001010020000	3	2000.9155	-3	3	1	3	0	--	--	--	--	--	--
0.676936	127.53577	1.730293	0.37	0.35	45	08300858+0143490	17.047	0.231	0.231	4.6	16.123	0.19	0.19	5.3	15.872	0.302	0.303	3.4	DCD	222	111	000	60605	14.1	262	804039541	0	0	804039539	s	2000-01-30	58	223.131	22.654	82.7	2451573.6811	0.95	0.74	0.98	16.537	0.399	17.529	1.515	16.04	0.705	6249	170	sw	0	1	0	--	--	--	--	0	--	43956	1010982	198	J083008.62+014348.6	127.535921	1.730181	0.023	0.02	90	23.847	21.895	20.462	19.034	18.355	0.756	0.075	0.032	0.017	0.032	1237653665249035083	6	1	0000001010000100	3	2000.9155	--	--	--	--	0	--	--	--	--	--	--

For the SDSS DR9 table this action has given us all the columns. So before we move on, we restrict the table to the columns, we are actually interested in.

sdss_mass = sdss_mass[
    "2MASS",
    "RAJ2000",
    "DEJ2000",
    "Jmag",
    "Hmag",
    "Kmag",
    "SDSS9",
    "RAdeg",
    "DEdeg",
    "umag",
    "gmag",
    "rmag",
    "imag",
    "zmag",
    "cl",
]

print(f"We are currently working with {len(sdss_mass)} sources")

We are currently working with 717 sources

Step #3: Filtering#

In this step we select all those sources from our cross-matched catalogue that have colours and fluxes as expected for brown dwarfs.

The selection cirteria for Brown Dwarfs are:

umag > 22.0 –> magnitude in u-band fainter than 22.0mag
gmag > 22.2 –> magnitude in g-band fainter than 22.2mag
Jmag - Hmag < 0.3 –> J-H band colour smaller than 0.3mag
Hmag - Kmag < 0.3 –> H-K band colour smaller than 0.3mag

We now apply these selection criteria to our table of point sources.

# Add columsn with J-H and H-K colour
sdss_mass["J-H"] = sdss_mass["Jmag"] - sdss_mass["Hmag"]
sdss_mass["H-K"] = sdss_mass["Hmag"] - sdss_mass["Kmag"]
# Limit sources to those that fulfil the selection criteria
index_bd = (
    (sdss_mass["umag"] > 22.0)
    & (sdss_mass["gmag"] > 22.2)
    & (sdss_mass["J-H"] < 0.3)
    & (sdss_mass["H-K"] < 0.3)
)
candidates = sdss_mass[index_bd]
print(f"We have {len(candidates)} candidates for Brown Dwarfs")

We have 2 candidates for Brown Dwarfs

candidates

Table length=2

2MASS	RAJ2000	DEJ2000	Jmag	Hmag	Kmag	SDSS9	RAdeg	DEdeg	umag	gmag	rmag	imag	zmag	cl	J-H	H-K
str16	float64	float64	float64	float64	float64	str19	float64	float64	float64	float64	float64	float64	float64	int64	float64	float64
08304878+0128311	127.703265	1.47532	16.289	16.14	16.358	J083048.81+012831.0	127.703377	1.475293	25.322	24.514	25.492	25.878	19.401	3	0.1490000000000009	-0.21799999999999997
08304512+0134404	127.688007	1.577901	16.18	16.021	15.769	J083045.23+013443.5	127.688491	1.578759	24.004	22.299	21.03	20.478	20.53	6	0.15899999999999892	0.25200000000000067

Note that we are using slightly different selection criteria here in the notebook than in the original tutorial. The reason is the following. The CDS XMatch service uses VizieR tables with their default filtering. For the SDSS DR 9 table, VizieR will filter to only use primary sources and disregard secondary sources, which is not the case when downloading the VizieR table with e.g. TOPCAT. Now the primary SDSS source for this brown dwarf is classified as an extended source by the automated SDSS pipeline, probably because it is hardly detected and very faint. So if we remove all extended sources we also throw away the target of our studies. Hence, the filtering in this notebook is less strict to allow

Step #4: Verification of the Brown Dwarf candidates#

Visualization#

The ipyaladin package allows to run an instance of Aladin Lite in your Jupyter notebook.

aladin1 = Aladin(
    survey="P/SDSS9/color",
    fov=0.03,
    target="{:.4f} {:.4f}".format(candidates["RAJ2000"][0], candidates["DEJ2000"][0]),
)
aladin1

As with any instance of Aladin Lite you can zoom in and out by scrolling your mouse. In the top left corner of the widget, you may chose which survey to look at, add layers, search for sources, …

You can also add tables to the widget by:

aladin1.add_table(candidates)

If you now click on the small square indicating the location of the source, the widget will show the corresponding table values in the lower part of the widget.

As you can see at one of the locations hardly anything is visible and at the location of the other brown dwarf candidate, there is a bright star. To further investigate these two sources, we now query Simbad for them.

Check in Simbad#

In the Simbad database, an object type is assigned to every entry. So if this Brown Dwarf candidate is in the Simbad database, we might learn more about the object type:

# First candidate has an index 0
customSimbad = Simbad()
customSimbad.remove_votable_fields("coordinates")
customSimbad.add_votable_fields(
    "ra(2;A;ICRS;J2000;2000)",
    "dec(2;D;ICRS;J2000;2000)",
    "otype",
)
candidate_coord = SkyCoord(
    ra=candidates["RAJ2000"][0],
    dec=candidates["DEJ2000"][0],
    unit=u.deg,
)
candidate_simbad = customSimbad.query_region(candidate_coord, radius=10 * u.arcsec)
candidate_simbad

Table length=1

MAIN_ID	RA_2_A_ICRS_J2000_2000	DEC_2_D_ICRS_J2000_2000	OTYPE	SCRIPT_NUMBER_ID
	"h:m:s"	"d:m:s"
object	str13	str13	object	int32
2MASS J08304878+0128311	08 30 48.7836	+01 28 31.152	BrownD*	1

# First candidate has an index 1
customSimbad = Simbad()
customSimbad.remove_votable_fields("coordinates")
customSimbad.add_votable_fields(
    "ra(2;A;ICRS;J2000;2000)",
    "dec(2;D;ICRS;J2000;2000)",
    "otype",
)
candidate_coord = SkyCoord(
    ra=candidates["RAJ2000"][1],
    dec=candidates["DEJ2000"][1],
    unit=u.deg,
)
candidate_simbad = customSimbad.query_region(candidate_coord, radius=1 * u.arcmin)
candidate_simbad

/home/manon.marchand/.conda/envs/build-jupybook/lib/python3.11/site-packages/astroquery/simbad/core.py:135: UserWarning: Warning: The script line number 3 raised an error (recorded in the `errors` attribute of the result table): '8:30:45.12168 +1:34:40.4436': No astronomical object found :
  warnings.warn("Warning: The script line number %i raised "

Indeed the first candidate is classified as a brown dwarf. Within 10arcsec of the second source, no entry is found in Simbad although this is the brighter star. The reason for this might be the following: sources in Simbad are sources that have individually been discussed in the literature. If no papers have been published specifcially about this object, it will not appear in Simbad. However, as the object was included in the SDSS tables it is included in VizieR through the table it belongs to.

If we now want to see, in which papers the Brown Dwarf 2MASS J08304878+0128311 was included, we may use the following query in Simbad.

tap_simbad = pyvo.dal.TAPService("https://simbad.cds.unistra.fr/simbad/sim-tap")

query = """
SELECT BIBCode, Journal, Title, "year", Volume,
       Page || '-' || Last_Page AS "Pages", DOI 
FROM ref JOIN has_ref ON oidbibref = oidbib 
         JOIN ident ON has_ref.oidref = ident.oidref 
WHERE id = '2MASS J08304878+0128311'
ORDER BY "year" DESC; 
"""

result = tap_simbad.search(query).to_table()
result

Table length=22

bibcode	journal	title	year	volume	Pages	doi
object	object	object	int16	int32	object	object
2021AJ....161...42B	AJ	A volume-limited sample of ultracool dwarfs. I. Construction, space density, and a gap in the L/T transition.	2021	161	42-42	10.3847/1538-3881/abc893
2020AJ....159..257B	AJ	The Hawaii infrared parallax program. IV. A comprehensive parallax survey of L0-T8 dwarfs with UKIRT.	2020	159	257-257	10.3847/1538-3881/ab84f4
2016ApJ...827...25B	ApJ	The orbit of the L dwarf + T dwarf spectral binary SDSS J080531.84+481233.0.	2016	827	25-25	10.3847/0004-637X/827/1/25
2016A&A...589A..49S	A&A	Photometric brown-dwarf classification. II. A homogeneous sample of 1361 L and T dwarfs brighter than J = 17.5 with accurate spectral types.	2016	589	49-49	10.1051/0004-6361/201527359
2016ApJ...817..112S	ApJ	A proper motion survey using the first sky pass of NEOWISE-reactivation data.	2016	817		10.3847/0004-637X/817/2/112
2015ApJ...810..158F	ApJ	Fundamental parameters and spectral energy distributions of young and field age objects with masses spanning the stellar to planetary regime.	2015	810		10.1088/0004-637X/810/2/158
2014ApJ...793...75R	ApJ	Strong brightness variations signal cloudy-to-clear transition of brown dwarfs.	2014	793		10.1088/0004-637X/793/2/75
2013MNRAS.433.2054S	MNRAS	NPARSEC: NTT Parallaxes of Southern Extremely Cool objects. Goals, targets, procedures and first results.	2013	433	2054-2063	10.1093/mnras/stt876
2013MNRAS.433..457B	MNRAS	76 T dwarfs from the UKIDSS LAS: benchmarks, kinematics and an updated space density.	2013	433	457-497	10.1093/mnras/stt740
2012ApJ...752...56F	ApJ	The Brown Dwarf Kinematics Project (BDKP). III. Parallaxes for 70 ultracool dwarfs.	2012	752		10.1088/0004-637X/752/1/56
2012ApJ...748...74L	ApJ	The properties of the 500 K dwarf UGPS J072227.51-054031.2 and a study of the far-red flux of cold brown dwarfs.	2012	748		10.1088/0004-637X/748/2/74
2012ApJ...757..110B	ApJ	Discovery of a very low mass triple with late-M and T dwarf components: LP 704-48/SDSS J0006-0852AB.	2012	757		10.1088/0004-637X/757/2/110
2011ApJS..197...19K	ApJS	The first hundred brown dwarfs discovered by the Wide-field Infrared Survey Explorer (WISE).	2011	197		10.1088/0067-0049/197/2/19
2010A&A...515A..92S	A&A	Hip 63510C, Hip 73786B, and nine new isolated high proper motion T dwarf candidates from UKIDSS DR6 and SDSS DR7.	2010	515	92-92	10.1051/0004-6361/201014264
2010ApJ...710.1627L	ApJ	Mid-infrared photometry of cold brown dwarfs: diversity in age, mass, and metallicity.	2010	710	1627-1640	10.1088/0004-637X/710/2/1627
2010ApJ...710.1142B	ApJ	SpeX spectroscopy of unresolved very low mass binaries. I. Identification of 17 candidate binaries straddling the L dwarf/T dwarf transition.	2010	710	1142-1169	10.1088/0004-637X/710/2/1142
2009AJ....137....1F	AJ	The brown dwarf kinematics project I. Proper motions and tangential velocities for a large sample of late-type M, L, and T dwarfs.	2009	137	1-18	10.1088/0004-6256/137/1/1
2009yCat....1.2023S	yCat	Catalogue of stellar spectral classifications.	2009	1
2008MNRAS.390.1517C	MNRAS	Proper motions of field L and T dwarfs - II.	2008	390	1517-1526	10.1111/j.1365-2966.2008.13855.x
2008ApJ...676.1281M	ApJ	A cross-match of 2MASS and SDSS: newly found L and T dwarfs and an estimate of the space density of T dwarfs.	2008	676	1281-1306	10.1086/524721
2006ApJ...637.1067B	ApJ	A unified near-infrared spectral classification scheme for T dwarfs.	2006	637	1067-1093	10.1086/498563
2004AJ....127.3553K	AJ	Near-infrared photometry and spectroscopy of L and T dwarfs: the effects of temperature, clouds, and gravity.	2004	127	3553-3578	10.1086/420707

For further reading you could now go to ADS and search for the publications via their bibcode (enter in the search field bibcode:...) or their doi (doi:...).

To design similar queries for your own research, have a look at Simbad database schema.