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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 J002255.62+001901.61237657191444579526104306360PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914445795261043063601PRIMARY
12376573632249208201043063602SECONDARY
12376600089402418961043063602SECONDARY
12376602365718702381043063602SECONDARY
12376632043797882801043063602SECONDARY
12376633117533151031043063602SECONDARY
12376634620769738671043063602SECONDARY
12376635050431620151043063602SECONDARY
12376635436985232101043063602SECONDARY
12376637412497171571043063602SECONDARY
12376663010729667051043063602SECONDARY
12376663397211184831043063602SECONDARY
12376663826611576891043063602SECONDARY
12376664084449207611043063602SECONDARY
12376664986140026831043063602SECONDARY
12376666360736652871043063602SECONDARY
12376666618441900981043063602SECONDARY
12376458784846650001043063602SECONDARY
12376568521230920431043063602SECONDARY
12376568564084910241043063602SECONDARY
12376569079682180901043063602SECONDARY
12376571055253105371043063602SECONDARY