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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 J002717.67-000234.6123765719090816642894837722PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908166428948377221PRIMARY
1237657362688508004948377222SECONDARY
1237660008403894407948377222SECONDARY
1237660236035457134948377222SECONDARY
1237663203843440743948377222SECONDARY
1237663311216902251948377222SECONDARY
1237663461540561088948377222SECONDARY
1237663504506749148948377222SECONDARY
1237663543162110085948377222SECONDARY
1237663740713369701948377222SECONDARY
1237666300536553614948377222SECONDARY
1237666339184705641948377222SECONDARY
1237666382124810302948377222SECONDARY
1237666407908507903948377222SECONDARY
1237666498077655161948377222SECONDARY
1237666541025034372948377222SECONDARY
1237666635537252645948377222SECONDARY
1237666661307777282948377222SECONDARY
1237678433254047973948377222SECONDARY
1237645877948317761948377222SECONDARY
1237656851586678953948377222SECONDARY
1237656855872143461948377222SECONDARY
1237656907431805086948377222SECONDARY
1237657104988897431948377222SECONDARY