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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 J002716.53-000220.2123765719090816699894837487PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908166998948374871PRIMARY
1237657362688508301948374872SECONDARY
1237660008403894650948374872SECONDARY
1237660236035457456948374872SECONDARY
1237663203843441003948374872SECONDARY
1237663311216902518948374872SECONDARY
1237663461540561571948374872SECONDARY
1237663504506749515948374872SECONDARY
1237663543162110468948374872SECONDARY
1237663740713369953948374872SECONDARY
1237666300536554048948374872SECONDARY
1237666339184705913948374872SECONDARY
1237666382124745259948374872SECONDARY
1237666407908508362948374872SECONDARY
1237666498077655412948374872SECONDARY
1237666541025034758948374872SECONDARY
1237666635537253124948374872SECONDARY
1237666661307777731948374872SECONDARY
1237678433254048371948374872SECONDARY
1237645877948252882948374872SECONDARY
1237656851586679381948374872SECONDARY
1237656855872143742948374872SECONDARY
1237656907431805452948374872SECONDARY
1237657104988897863948374872SECONDARY