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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 J013023.89+004232.91237657071693857951111113187PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376570716938579511111131871PRIMARY
12376571060695215011111131872SECONDARY
12376571919888557381111131872SECONDARY
12376572349060883931111131872SECONDARY
12376573637691319361111131872SECONDARY
12376575870899986551111131872SECONDARY
12376577374142472201111131872SECONDARY
12376578147260834111111131872SECONDARY
12376599149623388421111131872SECONDARY
12376602371160811811111131872SECONDARY
12376629686839551691111131872SECONDARY
12376632049240646961111131872SECONDARY
12376663016171775291111131872SECONDARY
12376663832054341731111131872SECONDARY
12376664089891971691111131872SECONDARY
12376664991582788921111131872SECONDARY
12376458790289416471111131872SECONDARY
12376465490268003051111131872SECONDARY
12376565133533523381111131872SECONDARY
12376569085124290171111131872SECONDARY
12376569729168844331111131872SECONDARY