The starting point for the PS1 data archive is at zzz Pan-STARRS1 data archive home page.
Description: Contains the positional information for difference detection objects in a number of coordinate systems. The objects associate difference detections within a one arcsecond radius. The number of detections in each filter from is listed, along with maximum coverage fractions. References: Szalay, A. S., Gray, J., Fekete, G., et al. 2007, arXiv:cs/0701164. Name Unit Data Type Size Default Value Description diffObjName dimensionless VARCHAR(32) 32 NA IAU name for this object. diffObjPSOName dimensionless VARCHAR(32) 32 NA Alternate Pan-STARRS name for this object. diffObjAltName1 dimensionless VARCHAR(32) 32 Altername name for this object. diffObjAltName2 dimensionless VARCHAR(32) 32 Altername name for this object. diffObjAltName3 dimensionless VARCHAR(32) 32 Altername name for this object. diffObjPopularName dimensionless VARCHAR(140) 140 Well known name for this object. diffObjID dimensionless BIGINT 8 NA Unique difference object identifier. uniquePspsDOid dimensionless BIGINT 8 NA Unique internal PSPS difference object identifier. ippObjID dimensionless BIGINT 8 NA IPP internal object identifier. surveyID dimensionless TINYINT 1 NA Survey identifier. Details in the Survey table. htmID dimensionless BIGINT 8 NA Hierarchical triangular mesh (Szalay 2007) index. zoneID dimensionless INT 4 NA Local zone index, found by dividing the sky into bands of declination 1/2 arcminute in height: zoneID = floor((90 + declination)/0.0083333). randomDiffObjID dimensionless FLOAT 8 NA Random value drawn from the interval between zero and one. batchID dimensionless BIGINT 8 NA Internal database batch identifier. dvoRegionID dimensionless INT 4 -1 Internal DVO region identifier. objInfoFlag dimensionless INT 4 0 Information flag bitmask indicating details of the photometry. Values listed in ObjectInfoFlags. qualityFlag dimensionless TINYINT 1 0 Subset of objInfoFlag denoting whether this object is real or a likely false positive. Values listed in ObjectQualityFlags. ra degrees FLOAT 8 -999 Right ascension mean. dec degrees FLOAT 8 -999 Declination mean. cx dimensionless FLOAT 8 NA Cartesian x on a unit sphere. cy dimensionless FLOAT 8 NA Cartesian y on a unit sphere. cz dimensionless FLOAT 8 NA Cartesian z on a unit sphere. lambda degrees FLOAT 8 -999 Ecliptic longitude. beta degrees FLOAT 8 -999 Ecliptic latitude. l degrees FLOAT 8 -999 Galactic longitude. b degrees FLOAT 8 -999 Galactic latitude. gQfPerfect dimensionless REAL 4 -999 Maximum PSF weighted fraction of pixels totally unmasked from g filter detections. rQfPerfect dimensionless REAL 4 -999 Maximum PSF weighted fraction of pixels totally unmasked from r filter detections. iQfPerfect dimensionless REAL 4 -999 Maximum PSF weighted fraction of pixels totally unmasked from i filter detections. zQfPerfect dimensionless REAL 4 -999 Maximum PSF weighted fraction of pixels totally unmasked from z filter detections. yQfPerfect dimensionless REAL 4 -999 Maximum PSF weighted fraction of pixels totally unmasked from y filter detections. processingVersion dimensionless TINYINT 1 NA Data release version. nDetections dimensionless SMALLINT 2 -999 Number of difference detections in all filters. ng dimensionless SMALLINT 2 -999 Number of difference detections in g filter. nr dimensionless SMALLINT 2 -999 Number of difference detections in r filter. ni dimensionless SMALLINT 2 -999 Number of difference detections in i filter. nz dimensionless SMALLINT 2 -999 Number of difference detections in z filter. ny dimensionless SMALLINT 2 -999 Number of difference detections in y filter.