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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 J233736.43+000950.8123766378419493290996802860PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663784194932909968028601PRIMARY
1237666648956207195968028602SECONDARY
1237667104204259391968028602SECONDARY
1237667172923670686968028602SECONDARY
1237646011617574976968028602SECONDARY
1237650010242940973968028602SECONDARY
1237653012434059326968028602SECONDARY
1237659755515084922968028602SECONDARY
1237659905855586370968028602SECONDARY
1237660026111918226968028602SECONDARY
1237660223682576529968028602SECONDARY
1237660356818698319968028602SECONDARY
1237663277388464209968028602SECONDARY
1237663479267983524968028602SECONDARY
1237663526515835032968028602SECONDARY
1237663715474997408968028602SECONDARY