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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 J002255.06+001913.11237657191444578594104305872PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914445785941043058721PRIMARY
12376573632249201971043058722SECONDARY
12376600089402411311043058722SECONDARY
12376602365718038941043058722SECONDARY
12376632043797874961043058722SECONDARY
12376633117533144461043058722SECONDARY
12376635050431612841043058722SECONDARY
12376635436985223141043058722SECONDARY
12376637412497164461043058722SECONDARY
12376663010729658371043058722SECONDARY
12376663397211178201043058722SECONDARY
12376663826611570241043058722SECONDARY
12376664986140018691043058722SECONDARY
12376666360736646921043058722SECONDARY
12376666618441893761043058722SECONDARY
12376458784846645491043058722SECONDARY
12376568521230911301043058722SECONDARY
12376568564084902131043058722SECONDARY
12376569079682173661043058722SECONDARY
12376571055253097231043058722SECONDARY