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J/ApJS/174/136/gemstot GEMS survey data and catalog (Caldwell+, 2008)
GEMS total source catalog (all sources detected in the GEMS z850 imaging (h_proto_tot.cat.dp) (41681 rows)
  recno=2541
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ColumnValue  Explain   (UCD)
_RAJ200003 32 32.021976 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-27 53 05.52660 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195003 30 26.553945 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-28 03 10.50199 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon223.707070725 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-54.434090466 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
2541recno 2541  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

GEMSGEMSz033232.02m275305.5  GEMS sexagesimal coordinate-based name (GEMSzHHMMSS.sspDDMMSS.s) (meta.id;meta.main)
RAJ2000053.1334249 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000-27.8848685 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
Ftot 4257 ct Total flux in F850LP band (SExtr. FLUX_BEST) (phot.flux.density;em.opt.I)
e_Ftot 185 ct Error on total flux (stat.error)
mtot24.086 mag Total magnitude in F850LP band (SExtr. MAG_BEST12) (phot.mag;em.opt.I)
e_mtot 0.047 mag Error total magnitude (stat.error)
bck-0.01  "local" background level (instr.background;phys.atmol.level)
Area 135 pix+2 Isophotal area (SExtr. ISOAREA_IMAGE) (phys.area)
xpos6364.1 pix Image center x coordinate (pos.cartesian.x;instr.det)
ypos6218.9 pix Image center y coordinate (pos.cartesian.y;instr.det)
PA 19.5 deg [] Position angle (SExtr. THETA_IMAGE) (pos.posAng)
Ell 0.254  Ellipticity (src.ellipticity)
FWHM 15.7 pix Image FWHM (phys.angSize;obs.image)
Flag 0  SExtractor FLAGS (meta.code.error)
S/G 0.00   [0/1] Stellarity parameter (SExtr. CLASS_STAR) (src.class.starGalaxy)
ACSss1z07A_flx  ACS source image name (obs.image)
ACSm s1z07hot.seg  ACS mask image names (obs.image)
TExp2120 s Exposure time (time.duration;obs.exposure)
ABmag024.843 mag AB-mag zero point for F850LP band (phot.mag;em.opt.I)
rKron 6.18  SExtractor Kron aperture radius (phys.angSize)
Cxx 7.340e-02  SExtractor object ellipse parameter Cxx (stat.correlation)
Cyy 1.153e-01  SExtractor object ellipse parameter Cyy (stat.correlation)
Cxy-3.382e-02  SExtractor object ellipse parameter Cxy (stat.correlation)
Nover 0  Number of overlapping sources (meta.number)
  
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