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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 J005430.96-004737.5123766378312964506077855879PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783129645060778558791PRIMARY
1237667171858382909778558792SECONDARY
1237676324423598146778558792SECONDARY
1237646010552221805778558792SECONDARY
1237646646198206470778558792SECONDARY
1237653011368706159778558792SECONDARY
1237659754449797169778558792SECONDARY
1237659904790233119778558792SECONDARY
1237660025046564949778558792SECONDARY
1237660222617288720778558792SECONDARY
1237660355753345076778558792SECONDARY
1237663276323110943778558792SECONDARY
1237663478202695696778558792SECONDARY
1237663525450547214778558792SECONDARY
1237663714409709572778558792SECONDARY