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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 J022856.21+002206.41237666408458747920103520212PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376664084587479201035202121PRIMARY
12376664986278298011035202122SECONDARY
12376665415752090411035202122SECONDARY
12376458784984924641035202122SECONDARY
12376465484963512771035202122SECONDARY
12376465871541371811035202122SECONDARY
12376529995340841771035202122SECONDARY
12376565128229028491035202122SECONDARY
12376565471737938101035202122SECONDARY
12376569723863696661035202122SECONDARY
12376570711634084841035202122SECONDARY
12376572343756390981035202122SECONDARY
12376575865595494891035202122SECONDARY
12376578141956342301035202122SECONDARY
12376600089540690531035202122SECONDARY
12376629681535058691035202122SECONDARY
12376632043936154051035202122SECONDARY
12376633289314141771035202122SECONDARY
12376635437122847881035202122SECONDARY
12376663010867282711035202122SECONDARY
12376663826749849981035202122SECONDARY