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II/321
 IPHAS DR2 Source Catalogue (Barentsen+, 2014)
ReadMe+ftp
2014yCat.2321....0B
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Post annotation 		img(gal)
1.II/321/iphas2IPHAS DR2 (218,991,524 sources) (218991524 rows)
 

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  IPHAS (char) IPHAS name, based on J2000 position (meta.id;meta.main)
  RAJ2000 deg Right ascension (J2000) from r-band (pos.eq.ra;meta.main)
  DEJ2000 deg Declination (J2000) from r-band (pos.eq.dec;meta.main)
  sourceID (char) Unique identification number (meta.id)
  posErr arcsec RMS residual against 2MASS across the CCD (stat.error)
  mergedClass  Image classification flag (Note 1)   (meta.code.class)
  mergedClassStat  Merge stellarness-of-profile statistic (stat)
  pStar  Point source probability (stat.fit.goodness)
  pGalaxy  Extended source probability (stat.fit.goodness)
  pNoise  Noise source probability (stat.fit.goodness)
  rmi mag (n) r-i colour (phot.color;em.opt.R;em.opt.I)

ALL cols		    
(n) indicates a possible blank or NULL column  
  rmha mag (n) r-Halpha colour (phot.color;em.opt.R;em.line.Halpha)
  r mag (n) r mag using 2.3 arcsec diameter aperture (Vega scale) (phot.mag;em.opt.R)
  rErr mag (n) Uncertainty for r (Note 2)   (stat.error;phot.mag)
  rPeakMag mag (n) Alternative r mag derived from the peak pixel height (Vega scale) (phot.mag;em.opt.R)
  rPeakMagErr mag (n) Uncertainty in rPeakMag (Note 2)   (stat.error;phot.mag)
  rAperMag1 mag (n) Alternative r mag using the 1.2 arcsec diameter aperture (Vega scale) (phot.mag)
  rAperMag1Err mag (n) Uncertainty in rAperMag1 (Note 2)   (stat.error;phot.mag)
  rAperMag3 mag (n) Alternative r mag using the 3.3 arcsec diameter aperture (Vega scale) (phot.mag)
  rAperMag3Err mag (n) Uncertainty in rAperMag3 (Note 2)   (stat.error;phot.mag)
  rGauSig pix (n) RMS of axes of ellipse fit in r-band (stat.error)
  rEll  (n) Ellipticity in the r-band (src.ellipticity)
  rPA deg (n) Position angle in the r-band (pos.posAng)
  rClass  Discrete image classification flag (Note 3)   (meta.code.class)

ALL cols		    
(n) indicates a possible blank or NULL column  
  rClassStat  (n) N(0,1) stellarness-of-profile statistic (stat)
  rDeblend   [0,1] Blend flag for r-band. (meta.code)
  rSaturated   [0,1] Saturation flag for r-band (meta.code)
  rMJD d (n) Modified Julian Date for the r exposure (time.epoch)
  rSeeing arcsec (n) Average FWHM in the same CCD frame (phys.angSize)
  rDetectionID (char) Unique identifier of the r detection (Note 4)   (meta.id)
  rX pix (n) Pixel position in the r-band exposure (pos.cartesian.x;instr.det)
  rY pix (n) Pixel position in the r-band exposure (pos.cartesian.y;instr.det)
  i mag (n) i mag using 2.3 arcsec diameter aperture (Vega scale) (phot.mag;em.opt.I)
  iErr mag (n) Uncertainty for i (Note 2)   (stat.error;phot.mag)
  iPeakMag mag (n) Alternative i mag derived from the peak pixel height (Vega scale) (phot.mag;em.opt.I)
  iPeakMagErr mag (n) Uncertainty in iPeakMag (Note 2)   (stat.error;phot.mag)
  iAperMag1 mag (n) Alternative i mag using the 1.2 arcsec diameter aperture (Vega scale) (phot.mag)

ALL cols		    
(n) indicates a possible blank or NULL column  
  iAperMag1Err mag (n) Uncertainty in iAperMag1 (Note 2)   (stat.error;phot.mag)
  iAperMag3 mag (n) Alternative i mag using the 3.3 arcsec diameter aperture (Vega scale) (phot.mag)
  iAperMag3Err mag (n) Uncertainty in iAperMag3 (Note 2)   (stat.error;phot.mag)
  iGauSig pix (n) RMS of axes of ellipse fit in i-band (stat.error)
  iEll  (n) Ellipticity in the i-band (src.ellipticity)
  iPA deg (n) Position angle in the i-band (pos.posAng)
  iClass  Discrete image classification flag (Note 3)   (meta.code.class)
  iClassStat  (n) N(0,1) stellarness-of-profile statistic (stat)
  iDeblend   [0,1] Blend flag for i-band. (meta.code)
  iSaturated   [0,1] Saturation flag for i-band (meta.code)
  iMJD d (n) Modified Julian Date for the i exposure (time.epoch)
  iSeeing arcsec (n) Average FWHM in the same CCD frame (phys.angSize)
  iDetectionID (char) Unique identifier of the i detection (Note 4)   (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column  
  iX pix (n) Pixel position in the i-band exposure (pos.cartesian.x;instr.det)
  iY pix (n) Pixel position in the i-band exposure (pos.cartesian.y;instr.det)
  iXi arcsec (n) offset of the i-band position relative to the ra column (pos.angDistance)
  iEta arcsec (n) offset of the i-band position relative to the dec column (pos.angDistance)
  ha mag (n) H-alpha mag using 2.3" diameter aperture (Vega scale) (phot.mag)
  haErr mag (n) Uncertainty for H-alpha (Note 2)   (stat.error;phot.mag)
  haPeakMag mag (n) Alternative H-alpha mag derived from the peak pixel height (Vega scale) (phot.mag)
  haPeakMagErr mag (n) Uncertainty in haPeakMag (Note 2)   (stat.error;phot.mag)
  haAperMag1 mag (n) Alternative H-alpha mag using the 1.2 arcsec diameter aperture (Vega scale) (phot.mag)
  haAperMag1Err mag (n) Uncertainty in haAperMag1 (Note 2)   (stat.error;phot.mag)
  haAperMag3 mag (n) Alternative H-alpha mag using the 3.3 arcsec diameter aperture (Vega scale) (phot.mag)
  haAperMag3Err mag (n) Uncertainty in iAperMag3 (Note 2)   (stat.error;phot.mag)
  haGauSig pix (n) RMS of axes of ellipse fit in H-alpha (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column  
  haEll  (n) Ellipticity in H-alpha (src.ellipticity)
  haPA deg (n) Position angle in H-alpha (pos.posAng;spect.line)
  haClass  Discrete image classification flag (Note 3)   (meta.code.class)
  haClassStat  (n) N(0,1) stellarness-of-profile statistic (stat)
  haDeblend   [0,1] Blend flag for H-alpha (meta.code)
  haSaturated   [0,1] Saturation flag for H-alpha (meta.code)
  haMJD d (n) Modified Julian Date for the Ha exposure (time.epoch)
  haSeeing arcsec (n) Average FWHM in the same CCD frame (phys.angSize)
  haDetectionID (char) Unique ID of the H-alpha detection (Note 4)   (meta.id)
  haX pix (n) Pixel position in the H-alpha exposure (pos.cartesian.x;instr.det)
  haY pix (n) Pixel position in the H-alpha exposure (pos.cartesian.y;instr.det)
  haXi arcsec (n) offset of the H-alpha position relative to the ra column (pos.angDistance)
  haEta arcsec (n) offset of the H-alpha position relative to the dec column (pos.angDistance)

ALL cols		    
(n) indicates a possible blank or NULL column  
  brightNeighb   [0,1] Nearby very bright star flag (Note 5)   (meta.code)
  deblend   [0,1] Blend flag (meta.code)
  saturated   [0,1] Saturation flag (meta.code)
  nBands  Number of bands for source detection (meta.number)
  a10   [0,1] signal-to-noise >10 flag (Note 6)   (meta.code)
  a10point   [0,1] quality criteria flag (Note 7)   (meta.code.qual)
  fieldID (char) Survey field identifier (meta.id;obs.field)
  fieldGrade (char) Internal quality control score (meta.code.qual)
  night  UT date at the start of the night (time.epoch)
  seeing arcsec Maximum of rSeeing, iSeeing or HaSeeing (phys.angSize)
  ccd   [1-4] CCD chip number (meta.id)
  nObs   [1-9] Number of observations of the source (meta.number)
  sourceID2 (char) SourceID of the alternative detection of the object in the partner exposure (meta.id)
  fieldID2 (char) Field identifier of the partner detection (meta.id;instr.saturation;obs.field)
  r2 mag (n) r mag in the dithered partner field (Vega scale) (phot.mag;em.opt.R)
  rErr2 mag (n) Uncertainty for r2 (stat.error;phot.mag)
  i2 mag (n) i mag in the dithered partner field (Vega scale) (phot.mag;em.opt.I)
  iErr2 mag (n) Uncertainty for i2 (stat.error;phot.mag)
  ha2 mag (n) Ha mag in the dithered partner field (Vega scale) (phot.mag)
  haErr2 mag (n) Uncertainty for ha2 (stat.error;phot.mag)
  errBits2  (n) Error bitmask for the partner detection (Note 8)   (meta.code.qual)

ALL cols		    
(n) indicates a possible blank or NULL column  
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