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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 J212302.56+002230.31237663543678797276102568926PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376635436787972761025689261PRIMARY
12376660777088460571025689262SECONDARY
12376663010532401321025689262SECONDARY
12376663397013921371025689262SECONDARY
12376664084252598441025689262SECONDARY
12376666360540043511025689262SECONDARY
12376666618245292301025689262SECONDARY
12376498083718766151025689262SECONDARY
12376499114470941431025689262SECONDARY
12376557182477935561025689262SECONDARY
12376568950708645371025689262SECONDARY
12376569079484921371025689262SECONDARY
12376571914249184891025689262SECONDARY
12376594591596553211025689262SECONDARY
12376600089205810631025689262SECONDARY
12376602365521440411025689262SECONDARY
12376634448957939461025689262SECONDARY
12376635050235010721025689262SECONDARY