Sloan Digital Sky Survey
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Table Descriptions

nametypetext
PhotoObjAllPHOTO The full photometric catalog quantities for SDSS imaging.
This table contains one entry per detection, with the associated photometric parameters measured by PHOTO, and astrometrically and photometrically calibrated.

The table has the following views:

  • PhotoObj: all primary and secondary objects; essentially this is the view you should use unless you want a specific type of object.
  • PhotoPrimary: all photo objects that are primary (the best version of the object).
    • Star: Primary objects that are classified as stars.
    • Galaxy: Primary objects that are classified as galaxies.
    • Sky:Primary objects which are sky samples.
    • Unknown:Primary objects which are no0ne of the above
  • PhotoSecondary: all photo objects that are secondary (secondary detections)
  • PhotoFamily: all photo objects which are neither primary nor secondary (blended)

The table has indices that cover the popular columns.

PhotoObjAllSCHEMA The full photometric catalog quantities for SDSS imaging.
This table contains one entry per detection, with the associated photometric parameters measured by PHOTO, and astrometrically and photometrically calibrated.

The table has the following views:

  • PhotoObj: all primary and secondary objects; essentially this is the view you should use unless you want a specific type of object.
  • PhotoPrimary: all photo objects that are primary (the best version of the object).
    • Star: Primary objects that are classified as stars.
    • Galaxy: Primary objects that are classified as galaxies.
    • Sky:Primary objects which are sky samples.
    • Unknown:Primary objects which are no0ne of the above
  • PhotoSecondary: all photo objects that are secondary (secondary detections)
  • PhotoFamily: all photo objects which are neither primary nor secondary (blended)

The table has indices that cover the popular columns.