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(The bold columns are indexed columns)
Column NameDescriptionDatatype
cerrUncertainty of CMAG including errors in calibrationREAL
chiDAOPHOT chi value, i.e. how well the PSF fit this sourceREAL
chipChip number (1-62)SMALLINT
chipidUnique chip image name, e.g. 00123451_10CHAR
cmagCalibrated magnitude version of MAGREAL
decDeclination (J2000.0) of source, in degreesDOUBLE
decerrUncertainty in DEC (arcseconds) based on S/N of source and PSF FWHMREAL
decindivDeclination of source, from the original chip X/Y and WCSDOUBLE
decrefDeclination (J2000.0) of source, in degrees, from the referene chip chip file using XREF/YREF coords and the reference chip WCSDOUBLE
errUncertainty of MAGREAL
expnumEight-digit exposure numberCHAR
filterFilter, u, g, r, i, or zCHAR
flagSource Extractor FLAG value from coadd imageSMALLINT
forcedBoolean flag indicating if this is forced (ALLFRAME) photometrySMALLINT
idDeep ID for this source, same as in object tableCHAR
magInstrumental magnitude from ALLFRAME or ALLSTAR (not both)REAL
mjdExposure Modified Julian DateDOUBLE
origidID used for this detection in the original als/alf chip fileINTEGER
probSource Extractor stellaricity probability value (0~galaxy, 1~star)REAL
raRight Ascension (J2000.0) of source, in degreesDOUBLE
raerrUncertainty in RA (arcseconds) based on S/N of source and PSF FWHMREAL
raindivRight Ascension of source, from the original chip X/Y and WCSDOUBLE
rarefRight Ascension of source, from X/YREF and ref WCSDOUBLE
refidID used for this detection in the reference frame fileINTEGER
sharpDAOPHOT sharp value, measurement of peakinessREAL
sourceidUnique ID for this source, the field name plus a running numberCHAR
xX-coordinate for this source in the original chip (1-indexed)REAL
xrefX-coordinate for this source in the reference chip (1-indexed)REAL
yY-coordinate for this source in the original chip (1-indexed)REAL
yrefY-coordinate for this source in the reference chip (1-indexed)REAL