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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 J022223.51-001518.8123766378367608463188135615PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783676084631881356151PRIMARY
1237663891034538233881356152SECONDARY
1237667129440272549881356152SECONDARY
1237676324970103087881356152SECONDARY
1237646011098726647881356152SECONDARY
1237646505009152168881356152SECONDARY
1237646646744646040881356152SECONDARY
1237653011915210940881356152SECONDARY
1237653608877392124881356152SECONDARY
1237657109280719045881356152SECONDARY
1237657869492617431881356152SECONDARY
1237659754996302047881356152SECONDARY
1237659883829985592881356152SECONDARY
1237660025593069876881356152SECONDARY
1237660205951942915881356152SECONDARY
1237660240307355895881356152SECONDARY
1237660334801551625881356152SECONDARY
1237660785776722236881356152SECONDARY
1237663238195708341881356152SECONDARY
1237663276869615850881356152SECONDARY
1237663525997052080881356152SECONDARY