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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 J002724.75+011523.61237678617420824886124530747PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376786174208248861245307471PRIMARY
12376458795589305731245307472SECONDARY
12376568574827562741245307472SECONDARY
12376569090424178541245307472SECONDARY
12376571065995102141245307472SECONDARY
12376571925188445411245307472SECONDARY
12376573642991208041245307472SECONDARY
12376600100145071771245307472SECONDARY
12376602376460699191245307472SECONDARY
12376632054540535251245307472SECONDARY
12376633128275150111245307472SECONDARY
12376635061174273301245307472SECONDARY
12376635447727228731245307472SECONDARY
12376637423239824571245307472SECONDARY
12376663021471663851245307472SECONDARY
12376663407953184401245307472SECONDARY
12376663837354231241245307472SECONDARY
12376664095191860721245307472SECONDARY
12376664996882679371245307472SECONDARY
12376665426356471441245307472SECONDARY
12376666371479307571245307472SECONDARY
12376666629184554361245307472SECONDARY
12376784343282484581245307472SECONDARY