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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 J002909.08+001852.31237657191445299487104291819PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914452994871042918191PRIMARY
12376573632255757051042918192SECONDARY
12376600089409620681042918192SECONDARY
12376602365725248231042918192SECONDARY
12376632043805084261042918192SECONDARY
12376633117539701351042918192SECONDARY
12376635050438165111042918192SECONDARY
12376635436991777631042918192SECONDARY
12376637412504374041042918192SECONDARY
12376663010736213021042918192SECONDARY
12376663397217733631042918192SECONDARY
12376663826618779921042918192SECONDARY
12376664084455753901042918192SECONDARY
12376664986147227921042918192SECONDARY
12376665415621020411042918192SECONDARY
12376666360743856491042918192SECONDARY
12376666618448447801042918192SECONDARY
12376784332543102001042918192SECONDARY
12376458784853854781042918192SECONDARY
12376568521237466481042918192SECONDARY
12376568564092111681042918192SECONDARY
12376569079688727371042918192SECONDARY
12376571055259650871042918192SECONDARY