ucac4 scsivo://org.gavo.dc/ucac4/q/sThe GAVO DC teamZacharias, N.Finch, C. T.Girard, T. M.Henden, A.Bartlett, J. L.Monet, D. G.Zacharias, M. I.2012-10-17T00:00:00ZGAVO Data Centre Team

Mönchhofstrasse 12-14, D-69120 Heidelberg

gavo@ari.uni-heidelberg.de+49 6221 54 1837starssurveysastrometryproper-motions UCAC4 is a compiled, all-sky star catalog covering mainly the 8 to 16 magnitude range in a single bandpass between V and R. Positional errors are about 15 to 20 mas for stars in the 10 to 14 mag range. Proper motions have been derived for most of the about 113 million stars utilizing about 140 other star catalogs with significant epoch difference to the UCAC CCD observations. These data are supplemented by 2MASS photometric data for about 110 million stars and 5-band (B,V,g,r,i) photometry from the APASS (AAVSO Photometric All-Sky Survey) for over 50 million stars. UCAC4 also contains error estimates and various flags. All bright stars not observed with the astrograph have been added to UCAC4 from a set of Hipparcos and Tycho-2 stars. Thus UCAC4 should be complete from the brightest stars to about R=16, with the source of data indicated in flags.https://dc.g-vo.org/ucac4/q/s/infoIsServedByGAVO Data Center TAP service The UCAC4 release paper (in preparation) should be cited whenever UCAC data are utilized.http://dc.g-vo.org/ucac4/q/s/scs.xml?https://dc.g-vo.org/ucac4/q/s/scs.xml?GETapplication/x-votable+xmlRARight Ascension (ICRS decimal)degpos.eq.rarealDECDeclination (ICRS decimal)degpos.eq.decrealSRSearch radiusdegrealmagaUCAC aperture magnitudemagphot.mag;em.opt.VrealobjtObject typesrc.classintegerucacidUCAC 2 identification number (UCAC4-zzz-nnnnnn)meta.id;meta.maincharresponseformatFile 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.integer180100000true314.99827805555635.26734750.001http://dc.g-vo.org/ucac4/q/s/formhttps://dc.g-vo.org/ucac4/q/s/formhttp://dc.g-vo.org/ucac4/q/s/capabilitieshttps://dc.g-vo.org/ucac4/q/s/capabilitieshttp://dc.g-vo.org/ucac4/q/s/availabilityhttps://dc.g-vo.org/ucac4/q/s/availabilityhttp://dc.g-vo.org/ucac4/q/s/tableMetadatahttps://dc.g-vo.org/ucac4/q/s/tableMetadatahttp://dc.g-vo.org/taphttps://dc.g-vo.org/tap0/0-1151544 515448.277e-20 5.369e-19https://dc.g-vo.org/ucac4/q/s/coverageOpticalucac4 UCAC4 is a compiled, all-sky star catalog covering mainly the 8 to 16 magnitude range in a single bandpass between V and R. Positional errors are about 15 to 20 mas for stars in the 10 to 14 mag range. Proper motions have been derived for most of the about 113 million stars utilizing about 140 other star catalogs with significant epoch difference to the UCAC CCD observations. These data are supplemented by 2MASS photometric data for about 110 million stars and 5-band (B,V,g,r,i) photometry from the APASS (AAVSO Photometric All-Sky Survey) for over 50 million stars. UCAC4 also contains error estimates and various flags. All bright stars not observed with the astrograph have been added to UCAC4 from a set of Hipparcos and Tycho-2 stars. Thus UCAC4 should be complete from the brightest stars to about R=16, with the source of data indicated in flags.ucac4.main UCAC4 is a compiled, all-sky star catalog covering mainly the 8 to 16 magnitude range in a single bandpass between V and R. Positional errors are about 15 to 20 mas for stars in the 10 to 14 mag range. Proper motions have been derived for most of the about 113 million stars utilizing about 140 other star catalogs with significant epoch difference to the UCAC CCD observations. These data are supplemented by 2MASS photometric data for about 110 million stars and 5-band (B,V,g,r,i) photometry from the APASS (AAVSO Photometric All-Sky Survey) for over 50 million stars. UCAC4 also contains error estimates and various flags. All bright stars not observed with the astrograph have been added to UCAC4 from a set of Hipparcos and Tycho-2 stars. Thus UCAC4 should be complete from the brightest stars to about R=16, with the source of data indicated in flags.120000000ucacidUCAC 2 identification number (UCAC4-zzz-nnnnnn)meta.id;meta.maincharindexednullableraj2000Right Ascension at epoch J2000.0 (ICRS)degpos.eq.ra;meta.main1.05556e-0525.4659241.39338.4233601doubleindexednullabledej2000Declination at epoch J2000.0 (ICRS)degpos.eq.dec;meta.main-89.9821-69.5891-17.173363.522189.76991doubleindexednullablemagmUCAC fit model magnitudemagphot.mag;em.opt.V4.11212.23515.63516.45716.5930.999395floatnullablemagaUCAC aperture magnitudemagphot.mag;em.opt.V4.16812.18715.62516.51216.5720.987501floatindexednullablesigmagerror of UCAC magnitudemagstat.error;phot.mag;em.opt.V00.030.120.460.90.729271floatnullableobjtObject typesrc.class00.00.05.091.0shortcdfCombined double star flagmeta.code.multip00.00.01.0361.0shortsigraStandard error at central epoch in RA (*cos Dec)degstat.error;pos.eq.ra2.77778e-073.88889e-061.44444e-055.86111e-057.08333e-051floatnullablesigdecStandard error at central epoch in Decdegstat.error;pos.eq.dec2.77778e-073.88889e-061.44444e-055.66667e-057.08333e-051floatnullablena1Total number of CCD images of this starmeta.number01.02.08.0581.0shortnu1Number of CCD images used for this starmeta.number00.02.07.0571.0shortcu1Number of catalogs (epochs) used for proper motionsmeta.number11.02.04.0341.0shortcepraCentral epoch for mean RAyrtime.epoch1947.071969.081993.932002.42004.381floatnullablecepdecCentral epoch for mean Decyrtime.epoch1947.081969.361994.172002.442004.381floatnullablepmraProper motion in RA*cos(Dec)deg/yrpos.pm;pos.eq.ra-0.000539361-9.25e-06-4.44444e-078.36111e-060.001112030.956001floatnullablepmdeProper motion in Decdeg/yrpos.pm;pos.eq.dec-0.00161531-9.69444e-06-6.11111e-077.66667e-060.0004783610.956001floatnullablesigpmrStandard error of proper motion in RA*cos(Dec)deg/yrstat.error;pos.pm;pos.eq.ra8.33333e-083.88889e-071.25e-065.19444e-061.25e-050.956001floatnullablesigpmdStandard error of proper motion in Decdeg/yrstat.error;pos.pm;pos.eq.dec8.33333e-083.88889e-071.25e-065.16667e-061.25e-050.956001floatnullablepts_key2MASS unique star identifiermeta.id24825400932.83644301697.01302466140.3113400371290.966025intnullablemagj2MASS J magnitudemagphot.mag;em.IR.J-2.30210.25913.84515.45617.1210.966025floatnullablesigmagjError in 2MASS J magnitudemagstat.error;phot.mag;em.IR.J0.010.020.030.070.990.966025floatnullableicqflgjQuality flag for 2MASS J magnitudemagmeta.code;phot.mag;em.IR.J00.05.025.0581.0shortnullablemagh2MASS H magnitudemagphot.mag;em.IR.H-3.2249.58713.37715.09317.9940.966023floatnullablesigmaghError in 2MASS H magnitudemagstat.error;phot.mag;em.IR.H0.010.020.040.110.990.966023floatnullableicqflghQuality flag for 2MASS H magnitudemagmeta.code;phot.mag;em.IR.H00.05.025.0581.0shortnullablemagk_s2MASS K_s magnitudemagphot.mag;em.IR.K-3.5119.36513.25615.01417.9790.966025floatnullablesigmagk_sError in 2MASS K_s magnitudemagstat.error;phot.mag;em.IR.K0.010.020.040.190.990.966025floatnullableicqflgk_sQuality flag for 2MASS K_s magnitudemagmeta.code;phot.mag;em.IR.K00.05.025.0581.0shortnullablemagbB magnitude from APASSmagphot.mag;em.opt.B-0.41712.30316.01717.66818.9990.450797floatnullablesigmagbError in B magnitude from APASSmagstat.error;phot.mag;em.opt.B00.010.050.230.990.450797floatnullablemagvV magnitude from APASSmagphot.mag;em.opt.V-0.60811.54115.12716.69418.9980.457715floatnullablesigmagvError in V magnitude from APASSmagstat.error;phot.mag;em.opt.V00.010.020.140.990.457715floatnullablemaggg magnitude from APASSmagphot.mag;em.opt.V6.98111.97415.44117.00518.9820.402124floatnullablesigmaggError in g magnitude from APASSmagstat.error;phot.mag;em.opt.V00.010.030.130.90.402124floatnullablemagrr magnitude from APASSmagphot.mag;em.opt.R6.28911.33814.72316.29218.8120.4005floatnullablesigmagrError in r magnitude from APASSmagstat.error;phot.mag;em.opt.R00.010.030.120.90.4005floatnullablemagii magnitude from APASSmagphot.mag;em.opt.I5.51610.86914.29815.89118.9740.36431floatnullablesigmagiError in i magnitude from APASSmagstat.error;phot.mag;em.opt.I00.010.040.220.90.36431floatnullablespmflagsYale SPM g and c flagsmeta.code;src00.02.04.0371.0shortnullablesrcflagsSource flags (see note)meta.code00.010.010001001.09880200201.0intnullablediam2massObject size from 2MASSdegphys.angSize;src0.0002777780.0008333330.001666670.005555560.02277780.000667226floatnullablernmUnique star identification numbermeta.id36872039.2581135932.5175047628.751828931831.0intzn2Zone number of UCAC2meta.id.part139.0141.0269.02880.42441082shortnullablern2Running record number along UCAC2 zonemeta.id15128.093214.0218525.02701660.42441082intnullable