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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 J002716.16-000240.2123765719090816642694837481PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908166426948374811PRIMARY
1237657362688508002948374812SECONDARY
1237660008403894405948374812SECONDARY
1237660236035457132948374812SECONDARY
1237663203843440741948374812SECONDARY
1237663311216902249948374812SECONDARY
1237663461540561086948374812SECONDARY
1237663504506749146948374812SECONDARY
1237663543162110083948374812SECONDARY
1237663740713369699948374812SECONDARY
1237666300536553612948374812SECONDARY
1237666339184705639948374812SECONDARY
1237666382124744906948374812SECONDARY
1237666407908507901948374812SECONDARY
1237666498077655159948374812SECONDARY
1237666541025034370948374812SECONDARY
1237666635537252603948374812SECONDARY
1237666661307777280948374812SECONDARY
1237678433254047965948374812SECONDARY
1237645877948252392948374812SECONDARY
1237656851586678950948374812SECONDARY
1237656855872143459948374812SECONDARY
1237656907431805084948374812SECONDARY
1237657104988897428948374812SECONDARY