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Other photometric observations (detections)

Due to overlaps in imaging stripes, the SDSS sometimes observes the same object more than once. In such cases, we select one observation as PRIMARY (mode=1). Each astronomical object is assigned a thingID, and each time that "thing" is observed (detected in SDSS imaging), it assigned a separate objID.

Information about each astronomical "thing" is stored in the thingIndex table; thingIndex is a thin coupling table designed only to connect repeat observations. Information about each individual observation (detection) is in the photoObjAll table. (Note that photoObj contains only the primary [mode=1] and secondary [mode=2] observations of each "thing.") The detectionIndex table connects each objID to the thingID it corresponds with.

This detected object and its associated "Thing" (Primary observation)

IAU nameobjidthingidmode description
SDSS J004335.13-004637.4123766378312840106177836942PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783128401061778369421PRIMARY
1237667171857138643778369422SECONDARY
1237646010551042800778369422SECONDARY
1237653011367527255778369422SECONDARY
1237659754448618333778369422SECONDARY
1237659904789054461778369422SECONDARY
1237660025045386240778369422SECONDARY
1237660222616109808778369422SECONDARY
1237660355752166272778369422SECONDARY
1237663276321932098778369422SECONDARY
1237663478201516786778369422SECONDARY
1237663525449368427778369422SECONDARY
1237663714408465373778369422SECONDARY