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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 J002827.54+001605.21237657191445169160104295220PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376571914451691601042952201PRIMARY
12376573632255107701042952202SECONDARY
12376600089408965771042952202SECONDARY
12376602365724599671042952202SECONDARY
12376633117539044361042952202SECONDARY
12376635436991127381042952202SECONDARY
12376637412503724151042952202SECONDARY
12376663010735563251042952202SECONDARY
12376663397217084791042952202SECONDARY
12376663826617475321042952202SECONDARY
12376664084455104561042952202SECONDARY
12376664986146573351042952202SECONDARY
12376666360742549941042952202SECONDARY
12376666618447795861042952202SECONDARY
12376784332542452971042952202SECONDARY
12376458784852549651042952202SECONDARY
12376568521236812781042952202SECONDARY
12376568564091456631042952202SECONDARY
12376569079688077301042952202SECONDARY
12376571055258997411042952202SECONDARY