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I/337/tgasptyc

Gaia DR1 (Gaia Collaboration, 2016)

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TGAS supplement with BT and VT magnitudes (original column names in green) (2057050 rows)

recno=705020

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*Column*	*Value*		*Explain (UCD)*
_RAJ2000	00 49 18.332055508	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-21 23 50.49070724	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	00 46 49.932854155	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-21 40 11.41850115	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	117.974358614871	deg	Galactic longitude at Epoch=J2015, proper motions taken into account (pos.galactic.lon) (POS_GAL_LON)
_Glat	-84.248535842553	deg	Galactic latitude at Epoch=J2015, proper motions taken into account (pos.galactic.lat) (POS_GAL_LAT)
705020recno	705020		Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

hip	3845		Hipparcos identifier (hip) (meta.id.cross) (ID_ALTERNATIVE)
tycho2_id			Tycho 2 identifier (tycho2_id) (meta.id.cross) (ID_ALTERNATIVE)
solution_id	1635378410781933568		Solution ID (solution_id) (Note G1) (meta.id;meta.version) (ID_NUMBER)
source_id	2349697305365450624		⁽ⁱ⁾ Source ID (source_id) (Note G2) (meta.id;meta.main) (ID_MAIN)
random_index	749433		Random index used to select subsets (random_index) (Note G3) (meta.code) (CODE_MISC)
ref_epoch	2015.0	yr	[2015.0] Reference epoch in Julian years (ref_epoch) (Note G4) (meta.ref;time.epoch) (TIME_EPOCH)
ra	012.3265454836	deg	⁽ⁱ⁾ Right ascension (ICRS) at epoch 2015.0 (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
ra_error	0.660	mas	⁽ⁱ⁾ Standard error of right ascension (ra_error) (stat.error;pos.eq.ra) (ERROR)
dec	-21.3973180257	deg	⁽ⁱ⁾ Declination (ICRS) at epoch 2015.0 (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
dec_error	0.504	mas	⁽ⁱ⁾ Standard error of declination (dec_error) (stat.error;pos.eq.dec) (ERROR)
parallax	7.14	mas	⁽ⁱ⁾ Absolute barycentric stellar parallax of the source at the reference epoch Epoch (parallax) (pos.parallax) (POS_PARLX_TRIG)
parallax_error	0.95	mas	⁽ⁱ⁾ Standard error of parallax (parallax_error) (stat.error;pos.parallax) (ERROR)
pmRA	36.182	mas/yr	⁽ⁱ⁾ Proper motion in right ascension direction (pmRA) (Note G5) (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pmra_error	0.073	mas/yr	⁽ⁱ⁾ Standard error of proper motion in right ascension direction (pmra_error) (stat.error;pos.pm;pos.eq.ra) (ERROR)
pmdec	9.721	mas/yr	⁽ⁱ⁾ Proper motion in declination direction (pmdec) (Note G6) (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pmdec_error	0.074	mas/yr	⁽ⁱ⁾ Standard error of proper motion in declination direction (pmdec_error) (stat.error;pos.pm;pos.eq.dec) (ERROR)
ra_dec_corr	0.404		Correlation between right ascension and declination (ra_dec_corr) (stat.correlation) (STAT_CORRELATION)
ra_parallax_corr	-0.132		Correlation between right ascension and parallax (ra_parallax_corr) (stat.correlation) (STAT_CORRELATION)
ra_pmra_corr	0.362		Correlation between right ascension and proper motion in right ascension (ra_pmra_corr) (stat.correlation) (STAT_CORRELATION)
ra_pmdec_corr	0.106		Correlation between right ascension and proper motion in declination (ra_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
dec_parallax_corr	0.487		Correlation between declination and parallax (dec_parallax_corr) (stat.correlation) (STAT_CORRELATION)
dec_pmra_corr	0.136		Correlation between declination and proper motion in right ascension (dec_pmra_corr) (stat.correlation) (STAT_CORRELATION)
dec_pmdec_corr	0.305		Correlation between declination and proper motion in declination (dec_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
parallax_pmra_corr	-0.062		Correlation between parallax and proper motion in right ascension (parallax_pmra_corr) (stat.correlation) (STAT_CORRELATION)
parallax_pmdec_corr	0.134		Correlation between parallax and proper motion in declination (parallax_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
pmra_pmdec_corr	0.335		Correlation between proper motion in right ascension and proper motion in declination (pmra_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
astrometric_n_obs_al	61		Total number of observations AL (astrometric_n_obs_al) (Note G7) (meta.number) (NUMBER)
astrometric_n_obs_ac	61		Total number of observations AC (astrometric_n_obs_ac) (Note G8) (meta.number) (NUMBER)
astrometric_n_good_obs_al	61		Number of good observations AL (astrometric_n_good_obs_al) (Note G9) (meta.number) (NUMBER)
astrometric_n_good_obs_ac	58		Number of good observations AC (astrometric_n_good_obs_ac) (Note G9) (meta.number) (NUMBER)
astrometric_n_bad_obs_al	0		Number of bad observations AL (astrometric_n_bad_obs_al) (Note G10) (meta.number) (NUMBER)
astrometric_n_bad_obs_ac	3		Number of bad observations AC (astrometric_n_bad_obs_ac) (Note G10) (meta.number) (NUMBER)
astrometric_delta_q	2.27		Hipparcos/Gaia data discrepancy (Hipparcos subset of TGAS only) (astrometric_delta_q) (Note G11) (stat.value) (STAT_PARAM)
astrometric_excess_noise	1.65	mas	Excess noise of the source (astrometric_excess_noise) (Note G12) (stat.value) (STAT_PARAM)
astrometric_excess_noise_sig	2.2e+02		Significance of excess noise (astrometric_excess_noise_sig) (Note G13) (stat.value) (STAT_PARAM)
astrometric_primary_flag	1		[1] Primary or secondary (astrometric_primary_flag) (Note G14) (meta.code) (CODE_MISC)
astrometric_relegation_factor	16.04		Relegation factor (astrometric_relegation_factor) (arith.factor) (STAT_PARAM)
astrometric_weight_al	0.365	mas-2	Mean astrometric weight of the source in the AL direction (astrometric_weight_al) (stat.weight;stat.mean) (WEIGHT)
astrometric_weight_ac	2.10e-05	mas-2	Mean astrometric weight of the source in the AC direction (astrometric_weight_ac) (stat.weight;stat.mean) (WEIGHT)
astrometric_priors_used	3		[3/5] Type of prior used in in the astrometric solution (astrometric_priors_used) (Note G15) (meta.code) (CODE_MISC)
matched_observations	9		Amount of observations matched to this source (matched_observations) (Note G16) (meta.number) (NUMBER)
duplicated_source	1		[0/1] Source with duplicate sources (duplicated_source) (Note G17) (meta.code) (CODE_MISC)
scan_direction_strength_k1	0.464		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k1) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k2	0.641		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k2) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k3	0.425		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k3) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k4	0.430		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k4) (Note G18) (meta.code) (CODE_MISC)
scan_direction_mean_k1	126.83999000	deg	Mean position angle of scan directions across the source (scan_direction_mean_k1) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k2	-26.36376200	deg	Mean position angle of scan directions across the source (scan_direction_mean_k2) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k3	30.37798900	deg	Mean position angle of scan directions across the source (scan_direction_mean_k3) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k4	-26.87638500	deg	Mean position angle of scan directions across the source (scan_direction_mean_k4) (Note G19) (meta.code) (CODE_MISC)
phot_g_n_obs	65		Number of observations contributing to G photometry (phot_g_n_obs) (meta.number) (NUMBER)
phot_g_mean_flux	5241498.95269	e-/s	⁽ⁱ⁾ G-band mean flux (phot_g_mean_flux) (phot.flux;stat.mean;em.opt) (PHOT_FLUX_R)
phot_g_mean_flux_error	13814.46684	e-/s	⁽ⁱ⁾ Error on G-band mean flux (phot_g_mean_flux_error) (stat.error) (ERROR)
phot_g_mean_mag	8.726	mag	⁽ⁱ⁾ G-band mean magnitude (phot_g_mean_mag) (Note G20) (phot.mag;stat.mean;em.opt) (PHOT_MAG_R)
phot_variable_flag	NOT_AVAILABLE		Photometric variability flag (phot_variable_flag) (Note G21) (meta.code;src.var) (CODE_VARIAB)
l	117.9743685056	deg	⁽ⁱ⁾ Galactic longitude at epoch 2015.0 (l) (pos.galactic.lon) (POS_GAL_LON)
b	-84.2485371735	deg	⁽ⁱ⁾ Galactic latitude at epoch 2015.0 (b) (pos.galactic.lat) (POS_GAL_LAT)
ecl_lon	2.3446899075	deg	Ecliptic longitude at epoch 2015.0 (ecl_lon) (pos.ecliptic.lon) (POS_EC_LON)
ecl_lat	-24.4433594294	deg	Ecliptic latitude at epoch 2015.0 (ecl_lat) (pos.ecliptic.lat) (POS_EC_LAT)
TYC			TYC2 or TYC1 designation (meta.id.cross) (ID_ALTERNATIVE)
BTmag		mag	Tycho-2 or HIP BT magnitude (phot.mag;em.opt.B) (PHOT_TYCHO_B)
e_BTmag		mag	rms uncertainty on BTmag (stat.error;phot.mag;em.opt.B) (ERROR)
VTmag		mag	Tycho-2 or HIP VT magnitude (phot.mag;em.opt.V) (PHOT_TYCHO_V)
e_VTmag		mag	rms uncertainty on VTmag (stat.error;phot.mag;em.opt.V) (ERROR)

_RA.icrs	012.3263835646	deg	⁽ⁱ⁾ Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra) (POS_EQ_RA_OTHER)
_DE.icrs	-21.3973585298	deg	⁽ⁱ⁾ Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec) (POS_EQ_DEC_OTHER)

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