The starting point for the PS1 data archive is at Pan-STARRS1 data archive home page.

 

Description: Contains single epoch forced photometry of individual measurements of objects detected in the stacked images. The identifiers connecting the measurement back to the original image and to the object association are provided. PSF, aperture, and Kron (1980) photometry are included, along with sky and detector coordinate positions. References: Kron, R. G. 1980, ApJS, 43, 305.
NameUnitData TypeSizeDefault ValueDescription
objIDdimensionlessBIGINT8NAUnique object identifier.
uniquePspsFWiddimensionlessBIGINT8NAUnique internal PSPS forced warp identifier.
detectIDdimensionlessBIGINT8NAUnique detection identifier.
ippObjIDdimensionlessBIGINT8NAIPP internal object identifier.
ippDetectIDdimensionlessBIGINT8NAIPP internal detection identifier.
filterIDdimensionlessTINYINT1NAFilter identifier. Details in the Filter table.
surveyIDdimensionlessTINYINT1NASurvey identifier. Details in the Survey table.
forcedSummaryIDdimensionlessBIGINT8NAUnique forced warp summary identifier.
forcedWarpIDdimensionlessBIGINT8NAUnique forced warp identifier.
randomWarpIDdimensionlessFLOAT8NARandom value drawn from the interval between zero and one.
tessIDdimensionlessTINYINT10Tessellation identifier. Details in the TessellationType table.
projectionIDdimensionlessSMALLINT2-1Projection cell identifier.
skyCellIDdimensionlessTINYINT1255Skycell region identifier.
dvoRegionIDdimensionlessINT4-1Internal DVO region identifier.
obsTimedaysFLOAT8-999Modified Julian Date at the midpoint of the observation.
zpmagnitudesREAL40Photometric zeropoint. Necessary for converting listed fluxes and magnitudes back to measured ADU counts.
telluricExtmagnitudesREAL4NAEstimated Telluric extinction due to non-photometric observing conditions. Necessary for converting listed fluxes and magnitudes back to measured ADU counts.
expTimesecondsREAL4-999Exposure time of the frame/exposure. Necessary for converting listed fluxes and magnitudes back to measured ADU counts.
airMassdimensionlessREAL40Airmass at midpoint of the exposure. Necessary for converting listed fluxes and magnitudes back to measured ADU counts.
FpsfFluxJanskysREAL4-999PSF flux.
FpsfFluxErrJanskysREAL4-999Error in PSF flux.
xPosChipraw pixelsREAL4-999PSF x position in original chip pixels.
yPosChipraw pixelsREAL4-999PSF y position in original chip pixels.
FccdIDdimensionslessSMALLINT2-999OTA identifier of original chip (see ImageMeta).
FpsfMajorFWHMarcsecREAL4-999PSF major axis FWHM.
FpsfMinorFWHMarcsecREAL4-999PSF minor axis FWHM.
FpsfThetadegreesREAL4-999PSF major axis orientation.
FpsfCoredimensionlessREAL4-999PSF core parameter k, where F = F0 / (1 + k r^2 + r^3.33).
FpsfQfdimensionlessREAL4-999PSF coverage factor.
FpsfQfPerfectdimensionlessREAL4-999PSF weighted fraction of pixels totally unmasked.
FpsfChiSqdimensionlessREAL4-999Reduced chi squared value of the PSF model fit.
FmomentXXarcsec^2REAL4-999Second moment M_xx.
FmomentXYarcsec^2REAL4-999Second moment M_xy.
FmomentYYarcsec^2REAL4-999Second moment M_yy.
FmomentR1arcsecREAL4-999First radial moment.
FmomentRHarcsec^0.5REAL4-999Half radial moment (r^0.5 weighting).
FmomentM3Carcsec^2REAL4-999Cosine of trefoil second moment term: r^2 cos(3 theta) = M_xxx - 3 * M_xyy.
FmomentM3Sarcsec^2REAL4-999Sine of trefoil second moment: r^2 sin (3 theta) = 3 * M_xxy - M_yyy.
FmomentM4Carcsec^2REAL4-999Cosine of quadrupole second moment: r^2 cos (4 theta) = M_xxxx - 6 * M_xxyy + M_yyyy.
FmomentM4Sarcsec^2REAL4-999Sine of quadrupole second moment: r^2 sin (4 theta) = 4 * M_xxxy - 4 * M_xyyy.
FapFluxJanskysREAL4-999Aperture flux.
FapFluxErrJanskysREAL4-999Error in aperture flux.
FapFillFdimensionlessREAL4-999Aperture fill factor.
FapRadiusarcsecREAL4-999Aperture radius for forced warp detection.
FkronFluxJanskysREAL4-999Kron (1980) flux.
FkronFluxErrJanskysREAL4-999Error in Kron (1980) flux.
FkronRadarcsecREAL4-999Kron (1980) radius.
FskyJanskys/arcsec^2REAL4-999Background sky level.
FskyErrJanskys/arcsec^2REAL4-999Error in background sky level.
FinfoFlagdimensionlessBIGINT80Information flag bitmask indicating details of the photometry. Values listed in DetectionFlags.
FinfoFlag2dimensionlessINT40Information flag bitmask indicating details of the photometry. Values listed in DetectionFlags2.
FinfoFlag3dimensionlessINT40Information flag bitmask indicating details of the photometry. Values listed in DetectionFlags3.
processingVersiondimensionlessTINYINT1NAData release version.

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