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The USNO-B1.0 Catalog (Monet+ 2003)

The Whole-Sky USNO-B1.0 Catalog of 1,045,913,669 sources (1045175762 rows)

USNO-B1=1187-0189286

Note: The USNO-B Catalog presents positions, proper motions, magnitudes un blue, red and infrared, as well as star/galaxy estimators for 1,045,175,762 objects derived from 3,648,832,040 separate observations. The data were taken from scans of 7,435 Schmidt plates taken from various sky surveys during the last 50 years.
USNO-B1.0 catalog was created by Dave Monet and collaborators at http://www.nofs.navy.mil/data/fchpix/
Note that the star/galaxy estimators may be mixed up in dense regions.

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*Column*	*Value*		*Explain (UCD)*
_RAJ2000	02 59 59.03088	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	+00 00 20.5200	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	02 57 25.36061	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-00 11 32.2072	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	176.95077514	deg	Galactic longitude at Epoch=J2000, proper motions taken into account (pos.galactic.lon) (POS_GAL_LON)
_Glat	-48.90160130	deg	Galactic latitude at Epoch=J2000, proper motions taken into account (pos.galactic.lat) (POS_GAL_LAT)

USNO-B1.0	0900-0031276		⁽ⁱ⁾ Designation of the object (Note 1) (meta.id;meta.main) (ID_MAIN)
Tycho-2			Designation in the Tycho-2 Catalog I/259 (meta.id) (ID_ALTERNATIVE)
RAJ2000	044.995962	deg	⁽ⁱ⁾ Right Ascension at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
DEJ2000	+00.005700	deg	⁽ⁱ⁾ Declination at Eq=J2000, Ep=J2000 (Note 2) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
e_RAJ2000	108	mas	Mean error on RAdeg*cos(DEdeg) at Epoch (stat.error;pos.eq.ra) (ERROR)
e_DEJ2000	26	mas	Mean error on DEdeg at Epoch (stat.error;pos.eq.dec) (ERROR)
Epoch	1978.2	yr	Mean epoch of observation (Note 2) (time.epoch;obs) (TIME_EPOCH)
pmRA	0	mas/yr	Proper motion in RA (relative to YS4.0) (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pmDE	0	mas/yr	Proper motion in DE (relative to YS4.0) (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
muPr	0	0.1	Total Proper Motion probability (Note 7) (stat.probability) (STAT_PROBABILITY)
e_pmRA	0	mas/yr	Mean error on pmRA (stat.error;pos.pm;pos.eq.ra) (ERROR)
e_pmDE	0	mas/yr	Mean error on pmDE (stat.error;pos.pm;pos.eq.dec) (ERROR)
fit_RA	2	100mas	Mean error on RA fit (stat.error) (FIT_ERROR)
fit_DE	0	100mas	Mean error on DE fit (stat.error) (FIT_ERROR)
Ndet	5		[0,5] Number of detections (Note 7) (meta.number) (NUMBER)
Flags	..Y		[MsY.] Flags on object (Note 3) (meta.code) (CODE_MISC)
B1mag	18.80	mag	⁽ⁱ⁾ First blue magnitude (phot.mag;em.opt.B) (PHOT_PHG_B)
B1C	1		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
B1S	0		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
B1f	-99		Field number in survey (obs.field) (ID_FIELD)
B1s/g	7		Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
B1xi	-0.08	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
B1eta	0.00	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
R1mag	16.78	mag	⁽ⁱ⁾ First red magnitude (phot.mag;em.opt.R) (PHOT_PHG_R)
R1C	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
R1S	1		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
R1f	-99		Field number in survey (obs.field) (ID_FIELD)
R1s/g	8		Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
R1xi	0.32	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
R1eta	-0.06	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
B2mag	18.80	mag	⁽ⁱ⁾ Second blue magnitude (phot.mag;em.opt.B) (PHOT_PHG_B)
B2C	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
B2S	2		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
B2f	-99		Field number in survey (obs.field) (ID_FIELD)
B2s/g	10		Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
B2xi	0.07	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
B2eta	-0.01	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
R2mag	17.67	mag	⁽ⁱ⁾ Second red magnitude (phot.mag;em.opt.R) (PHOT_PHG_R)
R2C	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
R2S	3		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
R2f	-99		Field number in survey (obs.field) (ID_FIELD)
R2s/g	3		Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
R2xi	-0.15	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
R2eta	0.08	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)
Imag	17.37	mag	⁽ⁱ⁾ Infrared (N) magnitude (phot.mag;em.opt.I) (PHOT_PHG_I)
IC	2		source of photometric calibration (Note 4) (instr.calib) (INST_CALIB_PARAM)
IS	8		Survey number (see "Surveys" section below) (meta.id) (ID_SURVEY)
If	-99		Field number in survey (obs.field) (ID_FIELD)
Is/g			Star-galaxy separation (Note 6) (src.class.starGalaxy) (CLASS_STAR/GALAXY)
Ixi	0.20	arcsec	Residual in X direction (Note 5) (stat.fit.residual;pos.eq.ra;arith.diff) (POS_EQ_RA_OFF)
Ieta	-0.02	arcsec	Residual in Y direction (Note 5) (stat.fit.residual;pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF)