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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 J002257.87+001929.71237657191444578357104306381PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914445783571043063811PRIMARY
12376573632249200791043063812SECONDARY
12376600089402409541043063812SECONDARY
12376602365718692011043063812SECONDARY
12376632043797873211043063812SECONDARY
12376633117533143231043063812SECONDARY
12376634620769730861043063812SECONDARY
12376635050431611341043063812SECONDARY
12376635436985221411043063812SECONDARY
12376637412497162931043063812SECONDARY
12376663010729656581043063812SECONDARY
12376663397211177131043063812SECONDARY
12376663826611569001043063812SECONDARY
12376664084449198561043063812SECONDARY
12376664986140017261043063812SECONDARY
12376666360736645581043063812SECONDARY
12376666618441892311043063812SECONDARY
12376458784846643791043063812SECONDARY
12376568521230909661043063812SECONDARY
12376568564084900481043063812SECONDARY
12376569079682171091043063812SECONDARY
12376571055253094601043063812SECONDARY