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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 J004336.40-004607.6123766378312840020377750333PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783128400203777503331PRIMARY
1237667171857138010777503332SECONDARY
1237676324422418694777503332SECONDARY
1237646010551042470777503332SECONDARY
1237653011367526840777503332SECONDARY
1237659754448617714777503332SECONDARY
1237659904789053714777503332SECONDARY
1237660025045385485777503332SECONDARY
1237660222616109419777503332SECONDARY
1237660355752165652777503332SECONDARY
1237663276321931537777503332SECONDARY
1237663478201516259777503332SECONDARY
1237663525449367934777503332SECONDARY
1237663714408464716777503332SECONDARY