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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 J030325.81+005045.61237678437019090952117212609PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376784370190909521172126091PRIMARY
12376458790390989411172126092SECONDARY
12376463820581765681172126092SECONDARY
12376465109069988291172126092SECONDARY
12376465490369577801172126092SECONDARY
12376465876948091221172126092SECONDARY
12376530135302799911172126092SECONDARY
12376536104925265981172126092SECONDARY
12376565525430272071172126092SECONDARY
12376566040805376191172126092SECONDARY
12376571108957880901172126092SECONDARY
12376578711076864561172126092SECONDARY
12376597566113711221172126092SECONDARY
12376598854451200321172126092SECONDARY
12376600272082042951172126092SECONDARY
12376602419224903781172126092SECONDARY
12376603364166860871172126092SECONDARY
12376632398108427061172126092SECONDARY
12376632784846848581172126092SECONDARY
12376635276121211381172126092SECONDARY
12376637852912189901172126092SECONDARY
12376671310553416861172126092SECONDARY
12376763265852375121172126092SECONDARY
12376766739354747521172126092SECONDARY