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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 J224320.95-000649.4123766354315070705493452906PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663543150707054934529061PRIMARY
1237666300525150488934529062SECONDARY
1237666339173302334934529062SECONDARY
1237666382113407285934529062SECONDARY
1237666407897170256934529062SECONDARY
1237666493783802130934529062SECONDARY
1237666635525914884934529062SECONDARY
1237666661296439602934529062SECONDARY
1237645877936914688934529062SECONDARY
1237649807843786961934529062SECONDARY
1237649910919004439934529062SECONDARY
1237656907420402013934529062SECONDARY
1237657190896828746934529062SECONDARY
1237660008392491307934529062SECONDARY
1237660236024054108934529062SECONDARY
1237663444367704373934529062SECONDARY
1237663504495411481934529062SECONDARY