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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 J002855.15-000304.1123765719090836347494832637PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908363474948326371PRIMARY
1237657362688704938948326372SECONDARY
1237660008404026234948326372SECONDARY
1237660236035654117948326372SECONDARY
1237663203843572733948326372SECONDARY
1237663504506946196948326372SECONDARY
1237663543162307066948326372SECONDARY
1237663740713501424948326372SECONDARY
1237666300536750987948326372SECONDARY
1237666339184902912948326372SECONDARY
1237666382124942049948326372SECONDARY
1237666407908704778948326372SECONDARY
1237666498077786970948326372SECONDARY
1237666541025231351948326372SECONDARY
1237666635537449658948326372SECONDARY
1237666661307974176948326372SECONDARY
1237645877948449437948326372SECONDARY
1237656851586875933948326372SECONDARY
1237656855872275351948326372SECONDARY
1237656907432002035948326372SECONDARY
1237657104989094429948326372SECONDARY