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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 J003255.67-000115.6123765719090882157494824464PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908821574948244641PRIMARY
1237657362689097850948244642SECONDARY
1237660008404484163948244642SECONDARY
1237660236036046948948244642SECONDARY
1237663203844030542948244642SECONDARY
1237663311217492055948244642SECONDARY
1237663504507404340948244642SECONDARY
1237663543162699906948244642SECONDARY
1237663740713959505948244642SECONDARY
1237666300537143449948244642SECONDARY
1237666339185295456948244642SECONDARY
1237666382125400128948244642SECONDARY
1237666407909163066948244642SECONDARY
1237666498078244932948244642SECONDARY
1237666541025624189948244642SECONDARY
1237666635537907760948244642SECONDARY
1237666661308432438948244642SECONDARY
1237645877948907578948244642SECONDARY
1237653012440088675948244642SECONDARY
1237656851587268781948244642SECONDARY
1237656855872733275948244642SECONDARY
1237656907432394875948244642SECONDARY
1237657104989487226948244642SECONDARY