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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 J010942.21-004417.4123766378313128351477892694PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783131283514778926941PRIMARY
1237667171860021298778926942SECONDARY
1237676324425302149778926942SECONDARY
1237646010553925747778926942SECONDARY
1237646504464285779778926942SECONDARY
1237646646199844910778926942SECONDARY
1237653011370344664778926942SECONDARY
1237657868947751040778926942SECONDARY
1237659754451435696778926942SECONDARY
1237659904791871598778926942SECONDARY
1237660025048268940778926942SECONDARY
1237660222618927183778926942SECONDARY
1237660355755048985778926942SECONDARY
1237663276324749431778926942SECONDARY
1237663478204334152778926942SECONDARY
1237663525452185791778926942SECONDARY
1237663714411348122778926942SECONDARY