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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 J014541.74-003920.2123766378313521612477998791PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783135216124779987911PRIMARY
1237663890493670010779987912SECONDARY
1237667128899338995779987912SECONDARY
1237676324429234567779987912SECONDARY
1237646010557858111779987912SECONDARY
1237646504468283696779987912SECONDARY
1237646646203777475779987912SECONDARY
1237653011374342700779987912SECONDARY
1237657108739785482779987912SECONDARY
1237657868951749165779987912SECONDARY
1237659754455368496779987912SECONDARY
1237659883289117075779987912SECONDARY
1237660025052201796779987912SECONDARY
1237660205411074746779987912SECONDARY
1237660222622859751779987912SECONDARY
1237660334260683050779987912SECONDARY
1237660785235788432779987912SECONDARY
1237663276328682122779987912SECONDARY
1237663525456118478779987912SECONDARY
1237663714415280779779987912SECONDARY