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Table: nsc_dr1.chip
(The bold columns are indexed columns)
Column NameDescriptionDatatype
airmassAirmassREAL
ccdnumCCD numberSMALLINT
chipnrefmatchNumber of photometric reference sources matched for chipINTEGER
chipzptermChip-level zero-point offset used to estimate spatial variation of zeropointREAL
chipzptermerrUncertainty of CHIPZPTERMREAL
dateobsObservation timestamp. YYYY-MM-DDTHH:MM:SS.SSSSSSCHAR
decDeclination at center of chip, in degreesDOUBLE
dec_coef1DEC correction term 1: constant offset termDOUBLE
dec_coef2DEC correction term 2: delta_RA linear termDOUBLE
dec_coef3DEC correction term 3: delta_RA x delta_DEC cross termDOUBLE
dec_coef4DEC correction term 4: delta_DEC linear termDOUBLE
decrmsRMS in WCS fit for DEC with respect to Gaia reference starsREAL
decstderrStandard error of WCS fit for DEC with respect to Gaia reference starsREAL
depth10sig10 sigma magnitude depthREAL
depth9595th percentile magnitude depthREAL
ebvMedian SFD E(B-V) of sources in this chipREAL
expnumExposure numberINTEGER
exposureExposure nameCHAR
exptimeExposure time, in secondsREAL
filterFilter (u, g, r, i, z, Y, VR)CHAR
fwhmMedian FWHM of PSF (i.e. seeing) of chip, in arcsecondsREAL
instrumentInstrument name (c4d, k4m, ksb)CHAR
mjdObservation Modified Julian DateDOUBLE
ngaiamatchNumber of Gaia astrometric reference sources matchedINTEGER
nrefmatchNumber of photometric reference sources matched for exposureINTEGER
nsourcesNumber of good sources in this chipINTEGER
raRight ascension at center of chip, in degreesDOUBLE
ra_coef1RA correction term 2: delta_RA linear termDOUBLE
ra_coef1RA correction term 1: constant offset termDOUBLE
ra_coef3RA correction term 3: delta_RA x delta_DEC cross termDOUBLE
ra_coef4RA correction term 4: delta_DEC linear termDOUBLE
rarmsRMS in WCS fit for RA with respect to Gaia reference starsREAL
rastderrStandard error of WCS fit for RA with respect to Gaia reference starsREAL
vertex_dec1First DEC value for the four corners of the chipDOUBLE
vertex_dec2Second DEC value for the four corners of the chipDOUBLE
vertex_dec3Third DEC value for the four corners of the chipDOUBLE
vertex_dec4Fourth DEC value for the four corners of the chipDOUBLE
vertex_ra1First RA value for the four corners of the chipDOUBLE
vertex_ra2Second RA value for the four corners of the chipDOUBLE
vertex_ra3Third RA value for the four corners of the chipDOUBLE
vertex_ra4Fourth RA value for the four corners of the chipDOUBLE
zptermExposure-level zero-point offset used for phot calibrationREAL
zptermerrUncertainty of ZPTERMREAL


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