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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 J003248.64+004458.81237663204917772392113230149PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376632049177723921132301491PRIMARY
12376635055811461201132301492SECONDARY
12376635442364417881132301492SECONDARY
12376637417877013641132301492SECONDARY
12376664089829048921132301492SECONDARY
12376664991519867101132301492SECONDARY
12376784327178978181132301492SECONDARY
12376568569464751221132301492SECONDARY
12376569085061367721132301492SECONDARY
12376571060632291401132301492SECONDARY
12376571919825634301132301492SECONDARY
12376573637628397641132301492SECONDARY
12376600094782260311132301492SECONDARY
12376602371097888301132301492SECONDARY