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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 J002644.91+011331.01237657192518779235122248685PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571925187792351222486851PRIMARY
12376573642990555191222486852SECONDARY
12376600100144421071222486852SECONDARY
12376602376460049891222486852SECONDARY
12376632054539885341222486852SECONDARY
12376633128274499221222486852SECONDARY
12376634631511086691222486852SECONDARY
12376635061172968521222486852SECONDARY
12376635447726579161222486852SECONDARY
12376637423239174711222486852SECONDARY
12376663021471015351222486852SECONDARY
12376663407952533551222486852SECONDARY
12376663837353579271222486852SECONDARY
12376664095190555871222486852SECONDARY
12376664996882028301222486852SECONDARY
12376665426355819601222486852SECONDARY
12376666371478655071222486852SECONDARY
12376666629183249911222486852SECONDARY
12376458795588655221222486852SECONDARY
12376568531972265601222486852SECONDARY
12376568574826912221222486852SECONDARY
12376569090423529451222486852SECONDARY
12376571065994450791222486852SECONDARY