VizieR

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II/313/table3 Palomar Transient Factory (PTF) photometric catalog 1.0 (Ofek+, 2012)
PTF photometric catalog 1.0 (limited to not strongly variable sources with reliable photometry; i.e. Flag=1) (21167679 rows)
  recno=13215759
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ColumnValue  Explain   (UCD)
_RAJ200016 11 27.00553 "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+25 37 27.4190 "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)
_RAB195016 09 21.74731 "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+25 45 08.4147 "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)
_Glon042.83848023 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+45.47750724 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)
13215759recno13215759  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

RAJ2000242.862523 deg (i) Median J2000.0 right ascension over all the images used to derive the photometry (pos.eq.ra;meta.main)
DEJ2000+25.624283 deg (i) Median J2000.0 declination over all the images used to derive the photometry (pos.eq.dec;meta.main)
Nobs 29   [3/30] Number of images that were used to derive the photometry (meta.number)
Nn 29   [3/30] Number of individual nights in which the images were taken (meta.number)
RMS 0.021 mag [0.018/0.037] Best bright-star RMS value (APBSRMS parameter) over all nights used (stat.stdev)
Rptf 18.069 mag Median R-band magnitude RPTF in the PTF system (not color corrected to SDSS) over all epochs (phot.mag;em.opt.R)
e_Rptf 0.054 mag Error ΔRPTF on Rptf (Note 1)   (stat.error)
err- 0.050 mag Lower-bound error Δ-RPTF on Rptf (Note 2)   (stat.error)
err+ 0.059 mag Upper-bound error Δ+RPTF on Rptf (Note 2)   (stat.error)
mu -1.469 mag [-5.5/0.66] µtype is a star/galaxy class indicator (negative for extended sources) (Note 3)   (src.class.starGalaxy)
e_mu 0.241 mag Standard deviation of mu as measured over all images used in the processing (stat.error)
Field 3886   [1392/120001] The PTF unique field identifier (meta.id;obs.field)
CCD 6   [0/11] The PTF CCD identifier (meta.id;instr.det)
  
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