The Gaia-PS1-SDSS (GPS1) Proper Motion CatalogGPS1ivo://org.gavo.dc/gps1/q/coneThe GAVO DC teamTian, H.-J.Gupta, P.Sesar, B.Rix, H.-W.Liu, C.Goldman, B.Platais, I.Kudritzki, R-P.Waters, C.Z.2017-11-08T00:00:00ZGAVO Data Center TeamMönchhofstrasse 12-14, D-69120 Heidelberggavo@ari.uni-heidelberg.de++49 6221 54 1837starssurveysastrometryproper-motions
This catalog combines Gaia DR1, Pan-STARRS 1, SDSS and 2MASS astrometry
to compute proper motions for 350 million sources across three-fourths of
the sky down to a magnitude of mr≈20. Positions of galaxies from Pan-STARRS 1
are used to build a reference frame for PS1, SDSS, and 2MASS data.
Gaia DR1 is adapted to that reference frame by exploiting that locally,
proper motions are linear.
GPS1 has a characteristic systematic error of less than 0.3 mas/yr, and
a typical precision of 1.5−2.0 mas/yr. The proper motions have been
validated using galaxies, open clusters, distant giant stars and QSOs. In
comparison with other published faint proper motion catalogs, GPS1's
systematic error (<0.3 mas/yr) is about 10 times better than that of PPMXL
and UCAC4 (>2.0 mas/yr). Similarly, its precision (~1.5 mas/yr) is
an improvement by ∼ 4 times relative to PPMXL and UCAC4 (∼6.0 mas/yr).
For QSOs, the precision of GPS1 is found to be worse (∼2.0−3.0 mas/yr),
possibly due to their particular differential chromatic refraction (DCR).http://dc.zah.uni-heidelberg.de/gps1/q/cone/infoResearchIsServedByGAVO Data Center TAP servicehttp://dc.zah.uni-heidelberg.de/gps1/q/cone/formhttps://dc.zah.uni-heidelberg.de/gps1/q/cone/formhttp://dc.zah.uni-heidelberg.de/gps1/q/cone/scs.xml?https://dc.zah.uni-heidelberg.de/gps1/q/cone/scs.xml?GETapplication/x-votable+xmlRARight Ascension (ICRS decimal)degpos.eq.rarealDECDeclination (ICRS decimal)degpos.eq.decrealSRSearch radiusdegrealobj_idUnique object identifier (this is not the Pan-STARRS1 identifier).meta.id;meta.mainintegermagrr-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.RrealresponseformatFile format requested for output.meta.code.mimecharmaxrecMaximum number of records returned. Pass 0 to retrieve service parameters.integerverbExhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.integer180100000true294.42-1.530.01http://dc.zah.uni-heidelberg.de/gps1/q/cone/availabilityhttps://dc.zah.uni-heidelberg.de/gps1/q/cone/availabilityhttp://dc.zah.uni-heidelberg.de/gps1/q/cone/capabilitieshttps://dc.zah.uni-heidelberg.de/gps1/q/cone/capabilitieshttp://dc.zah.uni-heidelberg.de/gps1/q/cone/tableMetadatahttps://dc.zah.uni-heidelberg.de/gps1/q/cone/tableMetadatahttp://dc.zah.uni-heidelberg.de/taphttps://dc.zah.uni-heidelberg.de/tap0/0-1155197 551978.277e-20 5.442e-19http://dc.zah.uni-heidelberg.de/gps1/q/cone/coverageOpticalInfraredgps1The Gaia-PS1-SDSS (GPS1) Proper Motion Catalog
This catalog combines Gaia DR1, Pan-STARRS 1, SDSS and 2MASS astrometry
to compute proper motions for 350 million sources across three-fourths of
the sky down to a magnitude of mr≈20. Positions of galaxies from Pan-STARRS 1
are used to build a reference frame for PS1, SDSS, and 2MASS data.
Gaia DR1 is adapted to that reference frame by exploiting that locally,
proper motions are linear.
GPS1 has a characteristic systematic error of less than 0.3 mas/yr, and
a typical precision of 1.5−2.0 mas/yr. The proper motions have been
validated using galaxies, open clusters, distant giant stars and QSOs. In
comparison with other published faint proper motion catalogs, GPS1's
systematic error (<0.3 mas/yr) is about 10 times better than that of PPMXL
and UCAC4 (>2.0 mas/yr). Similarly, its precision (~1.5 mas/yr) is
an improvement by ∼ 4 times relative to PPMXL and UCAC4 (∼6.0 mas/yr).
For QSOs, the precision of GPS1 is found to be worse (∼2.0−3.0 mas/yr),
possibly due to their particular differential chromatic refraction (DCR).
gps1.mainGPS1 main table with some deviations from the published paper. In
particular note that Gaia and Pan-STARRS1 photometry results from
blind crossmatching; see d_g and d_ps1 fields for the offsets in the
respective crossmatches.350000000obj_idUnique object identifier (this is not the Pan-STARRS1 identifier).meta.id;meta.mainlongindexedraRight Ascension from fit (ICRS, Epoch J2010).degpos.eq.ra;meta.maindoubleindexednullabledecDeclination from fit (ICRS, Epoch J2010).degpos.eq.dec;meta.maindoubleindexednullablee_raError in Right Ascension from Gaia DR1.degstat.error;pos.eq.ra;meta.mainfloatnullablee_decError in Declination from Gaia DR1.degstat.error;pos.eq.dec;meta.mainfloatnullablera_ps1Right Ascension from Pan-STARRS1degpos.eq.radoublenullabledec_ps1Declination from Pan-STARRS1degpos.eq.decdoublenullablepmraProper motion in RA with cos(δ) applied; robust fit.deg/yrpos.pm;pos.eq.rafloatnullablee_pmraError of proper motion in RA, cos(δ) applied; robust fit.deg/yrstat.error;pos.pm;pos.eq.rafloatnullablepmdeProper motion in Declination; robust fit.deg/yrpos.pm;pos.eq.decfloatnullablee_pmdeError of proper motion in Declination; robust fit.deg/yrstat.error;pos.pm;pos.eq.decfloatnullablepmra_xProper motion in RA with cos(δ) applied; x-validation fit.deg/yrpos.pm;pos.eq.rafloatnullablee_pmra_xError of proper motion in RA, cos(δ) applied; x-validation fit.deg/yrstat.error;pos.pm;pos.eq.rafloatnullablepmde_xProper motion in Declination; x-validation fit.deg/yrpos.pm;pos.eq.decfloatnullablee_pmde_xError of proper motion in Declination; x-validation fit.deg/yrstat.error;pos.pm;pos.eq.decfloatnullablepmra_ngProper motion in RA with cos(δ) applied; fit without Gaia.deg/yrpos.pm;pos.eq.rafloatnullablee_pmra_ngError of proper motion in RA, cos(δ) applied; fit without Gaia.deg/yrstat.error;pos.pm;pos.eq.rafloatnullablepmde_ngProper motion in Declination; fit without Gaia.deg/yrpos.pm;pos.eq.decfloatnullablee_pmde_ngError of proper motion in Declination; fit without Gaia.deg/yrstat.error;pos.pm;pos.eq.decfloatnullablepmra_psProper motion in RA with cos(δ) applied; fit with only Pan-STARRS.deg/yrpos.pm;pos.eq.rafloatnullablee_pmra_psError of proper motion in RA, cos(δ) applied; fit with only Pan-STARRS.deg/yrstat.error;pos.pm;pos.eq.rafloatnullablepmde_psProper motion in Declination; fit with only Pan-STARRS.deg/yrpos.pm;pos.eq.decfloatnullablee_pmde_psError of proper motion in Declination; fit with only Pan-STARRS.deg/yrstat.error;pos.pm;pos.eq.decfloatnullablechi2pmraReduced χ² for the robust fit of proper motion in RAstat.fit.chi2;pos.pm;pos.eq.rafloatnullablechi2pmdeReduced χ² for the robust fit of proper motion in Declinationstat.fit.chi2;pos.pm;pos.eq.decfloatnullablechi2pmra_psReduced χ² for the Pan-STARRS 1-only fit of proper motion in RAstat.fit.chi2;pos.pm;pos.eq.rafloatnullablechi2pmde_psReduced χ² for the Pan-STARRS 1-only fit of proper motion in Declinationstat.fit.chi2;pos.pm;pos.eq.decfloatnullablemaggg-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.Vfloatnullablee_maggError in g-band PSF magnitude from Pan-STARRS1 DR1magstat.error;phot.mag;em.opt.Vfloatnullablemagrr-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.Rfloatnullablee_magrError in r-band PSF magnitude from Pan-STARRS1 DR1magstat.error;phot.mag;em.opt.Rfloatnullablemagii-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.Ifloatnullablee_magiError in i-band PSF magnitude from Pan-STARRS1 DR1magstat.error;phot.mag;em.opt.Ifloatnullablemagzz-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.Ifloatnullablee_magzError in z-band PSF magnitude from Pan-STARRS1 DR1magstat.error;phot.mag;em.opt.Ifloatnullablemagyy-band PSF magnitude from Pan-STARRS1 DR1magphot.mag;em.opt.Ifloatnullablee_magyError in y-band PSF magnitude from Pan-STARRS1 DR1magstat.error;phot.mag;em.opt.IfloatnullablemagjJ-band magnitude from 2MASSmagphot.mag;em.ir.Jfloatnullablee_magjError in J-band magnitude from 2MASSmagstat.error;phot.mag;em.ir.JfloatnullablemaghH-band magnitude from 2MASSmagphot.mag;em.ir.Hfloatnullablee_maghError in H-band magnitude from 2MASSmagstat.error;phot.mag;em.ir.HfloatnullablemagkK_s-band magnitude from 2MASSmagphot.mag;em.ir.Kfloatnullablee_magkError in K_s-band magnitude from 2MASSmagstat.error;phot.mag;em.ir.KfloatnullablemaggaiaG-band magnitude from Gaiamagphot.mag;em.opt.Vfloatnullablee_maggaiaError in G-band magnitude from Gaiamagstat.error;phot.mag;em.opt.Vfloatnullablen_obsps1Number of PS1 SeasonAVG detections.meta.number;obsshortn_obsnumber of all the detections.meta.number;obsshortsurveysSum of source codes for the source catalogues that went into this row. Pan-STARRS is always present. Source codes: 5 -- 2MASS; 10 -- SDSS, 20 -- Gaia.meta.codeshortd_ps1Distance between position in GPS1 and the associated (closest) position in Pan-STARRS1 used for (not accounting for the epoch difference).arcsecpos.eq;arith.difffloatnullabled_gDistance between position in GPS1 and the associated (closest) position in Gaia DR1 (not accounting for the epoch difference).arcsecpos.eq;arith.difffloatnullable