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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 J002821.41-005152.1123765718983455551375581916PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657189834555513755819161PRIMARY
1237657361614897225755819162SECONDARY
1237660007330218087755819162SECONDARY
1237660234961846356755819162SECONDARY
1237663202769764467755819162SECONDARY
1237663310143291456755819162SECONDARY
1237663503433138260755819162SECONDARY
1237663542088499271755819162SECONDARY
1237663739639693431755819162SECONDARY
1237666299462942806755819162SECONDARY
1237666338111094857755819162SECONDARY
1237666381051134047755819162SECONDARY
1237666406834896979755819162SECONDARY
1237666497003978870755819162SECONDARY
1237666539951423555755819162SECONDARY
1237666634463641674755819162SECONDARY
1237666660234166367755819162SECONDARY
1237645876874641529755819162SECONDARY
1237656850513068102755819162SECONDARY
1237656854798467201755819162SECONDARY
1237656906358194255755819162SECONDARY
1237657103915286598755819162SECONDARY