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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 J002445.96+003324.31237663716017045686106788577PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376637160170456861067885771PRIMARY
12376637847369811951067885772SECONDARY
12376671734657189481067885772SECONDARY
12376784343277897471067885772SECONDARY
12376460121596232611067885772SECONDARY
12376530129760421311067885772SECONDARY
12376597560571331581067885772SECONDARY
12376599063975691441067885772SECONDARY
12376600266539664661067885772SECONDARY
12376602242246247881067885772SECONDARY
12376603573607466371067885772SECONDARY
12376632779304470091067885772SECONDARY
12376634798100317281067885772SECONDARY
12376635270578832521067885772SECONDARY