The starting point for the PS1 data archive is at Pan-STARRS1 data archive home page.
Description: Contains the Petrosian (1976) magnitudes and radii for extended sources. See StackObjectThin table for discussion of primary, secondary, and best detections. References: Petrosian, V. 1976, ApJL, 209, L1. Name Unit Data Type Size Default Value Description objID dimensionless BIGINT 8 NA Unique object identifier. uniquePspsSTid dimensionless BIGINT 8 NA Unique internal PSPS stack identifier. ippObjID dimensionless BIGINT 8 NA IPP internal object identifier. randomStackObjID dimensionless FLOAT 8 NA Random value drawn from the interval between zero and one. primaryDetection dimensionless TINYINT 1 255 Identifies if this row is the primary stack detection. bestDetection dimensionless TINYINT 1 255 Identifies if this row is the best detection. gippDetectID dimensionless BIGINT 8 NA IPP internal detection identifier. gstackDetectID dimensionless BIGINT 8 NA Unique stack detection identifier. gstackImageID dimensionless BIGINT 8 NA Unique stack identifier for g filter detection. gpetRadius arcsec REAL 4 -999 Petrosian (1976) fit radius for g filter stack detection. gpetRadiusErr arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for g filter stack detection. gpetMag AB magnitudes REAL 4 -999 Petrosian (1976) magnitude from g filter stack detection. gpetMagErr AB magnitudes REAL 4 -999 Error in Petrosian (1976) magnitude from g filter stack detection. gpetR50 arcsec REAL 4 -999 Petrosian (1976) fit radius for g filter stack detection. at 50% light gpetR50Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for g filter stack detection. at 50% light gpetR90 arcsec REAL 4 -999 Petrosian (1976) fit radius for g filter stack detection. at 90% light gpetR90Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for g filter stack detection. at 90% light gpetCf dimensionless REAL 4 -999 Petrosian (1976) fit coverage factor for g filter stack detection. rippDetectID dimensionless BIGINT 8 NA IPP internal detection identifier. rstackDetectID dimensionless BIGINT 8 NA Unique stack detection identifier. rstackImageID dimensionless BIGINT 8 NA Unique stack identifier for r filter detection. rpetRadius arcsec REAL 4 -999 Petrosian (1976) fit radius for r filter stack detection. rpetRadiusErr arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for r filter stack detection. rpetMag AB magnitudes REAL 4 -999 Petrosian (1976) magnitude from r filter stack detection. rpetMagErr AB magnitudes REAL 4 -999 Error in Petrosian (1976) magnitude from r filter stack detection. rpetR50 arcsec REAL 4 -999 Petrosian (1976) fit radius for r filter stack detection. at 50% light rpetR50Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for r filter stack detection. at 50% light rpetR90 arcsec REAL 4 -999 Petrosian (1976) fit radius for r filter stack detection. at 90% light rpetR90Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for r filter stack detection. at 90% light rpetCf dimensionless REAL 4 -999 Petrosian (1976) fit coverage factor for r filter stack detection. iippDetectID dimensionless BIGINT 8 NA IPP internal detection identifier. istackDetectID dimensionless BIGINT 8 NA Unique stack detection identifier. istackImageID dimensionless BIGINT 8 NA Unique stack identifier for i filter detection. ipetRadius arcsec REAL 4 -999 Petrosian (1976) fit radius for i filter stack detection. ipetRadiusErr arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for i filter stack detection. ipetMag AB magnitudes REAL 4 -999 Petrosian (1976) magnitude from i filter stack detection. ipetMagErr AB magnitudes REAL 4 -999 Error in Petrosian (1976) magnitude from i filter stack detection. ipetR50 arcsec REAL 4 -999 Petrosian (1976) fit radius for i filter stack detection. at 50% light ipetR50Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for i filter stack detection. at 50% light ipetR90 arcsec REAL 4 -999 Petrosian (1976) fit radius for i filter stack detection. at 90% light ipetR90Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for i filter stack detection. at 90% light ipetCf dimensionless REAL 4 -999 Petrosian (1976) fit coverage factor for i filter stack detection. zippDetectID dimensionless BIGINT 8 NA IPP internal detection identifier. zstackDetectID dimensionless BIGINT 8 NA Unique stack detection identifier. zstackImageID dimensionless BIGINT 8 NA Unique stack identifier for z filter detection. zpetRadius arcsec REAL 4 -999 Petrosian (1976) fit radius for z filter stack detection. zpetRadiusErr arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for z filter stack detection. zpetMag AB magnitudes REAL 4 -999 Petrosian (1976) magnitude from z filter stack detection. zpetMagErr AB magnitudes REAL 4 -999 Error in Petrosian (1976) magnitude from z filter stack detection. zpetR50 arcsec REAL 4 -999 Petrosian (1976) fit radius for z filter stack detection. at 50% light zpetR50Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for z filter stack detection. at 50% light zpetR90 arcsec REAL 4 -999 Petrosian (1976) fit radius for z filter stack detection. at 90% light zpetR90Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for z filter stack detection. at 90% light zpetCf dimensionless REAL 4 -999 Petrosian (1976) fit coverage factor for z filter stack detection. yippDetectID dimensionless BIGINT 8 NA IPP internal detection identifier. ystackDetectID dimensionless BIGINT 8 NA Unique stack detection identifier. ystackImageID dimensionless BIGINT 8 NA Unique stack identifier for y filter detection. ypetRadius arcsec REAL 4 -999 Petrosian (1976) fit radius for y filter stack detection. ypetRadiusErr arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for y filter stack detection. ypetMag AB magnitudes REAL 4 -999 Petrosian (1976) magnitude from y filter stack detection. ypetMagErr AB magnitudes REAL 4 -999 Error in Petrosian (1976) magnitude from y filter stack detection. ypetR50 arcsec REAL 4 -999 Petrosian (1976) fit radius for y filter stack detection. at 50% light ypetR50Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for y filter stack detection. at 50% light ypetR90 arcsec REAL 4 -999 Petrosian (1976) fit radius for y filter stack detection. at 90% light ypetR90Err arcsec REAL 4 -999 Error in Petrosian (1976) fit radius for y filter stack detection. at 90% light ypetCf dimensionless REAL 4 -999 Petrosian (1976) fit coverage factor for y filter stack detection.