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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 J002257.33+001922.91237657191444578360104306384PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914445783601043063841PRIMARY
12376573632249200831043063842SECONDARY
12376600089402409571043063842SECONDARY
12376602365718702491043063842SECONDARY
12376632043797882881043063842SECONDARY
12376633117533151141043063842SECONDARY
12376634620769730901043063842SECONDARY
12376635050431611381043063842SECONDARY
12376635436985221451043063842SECONDARY
12376637412497171741043063842SECONDARY
12376663397211184951043063842SECONDARY
12376663826611576091043063842SECONDARY
12376664084449198611043063842SECONDARY
12376666360736653021043063842SECONDARY
12376666618441901041043063842SECONDARY
12376458784846643841043063842SECONDARY
12376568521230920581043063842SECONDARY
12376568564084910361043063842SECONDARY
12376569079682181051043063842SECONDARY
12376571055253105501043063842SECONDARY