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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 J002645.65+011403.11237657192518779827122248674PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571925187798271222486741PRIMARY
12376573642990552531222486742SECONDARY
12376600100144418181222486742SECONDARY
12376602376460047101222486742SECONDARY
12376632054539885371222486742SECONDARY
12376633128274494701222486742SECONDARY
12376635447726580181222486742SECONDARY
12376637423239171801222486742SECONDARY
12376663021471008701222486742SECONDARY
12376663407952534971222486742SECONDARY
12376663837353580361222486742SECONDARY
12376664996882028351222486742SECONDARY
12376665426355816011222486742SECONDARY
12376666629183250731222486742SECONDARY
12376458795588656371222486742SECONDARY
12376568531972265711222486742SECONDARY
12376568574826907281222486742SECONDARY
12376569090423526961222486742SECONDARY