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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 J205947.37-002850.3123766354260249857483744280PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663542602498574837442801PRIMARY
1237666076632612900837442802SECONDARY
1237666299977007113837442802SECONDARY
1237666338625093872837442802SECONDARY
1237666407348961443837442802SECONDARY
1237666634977706126837442802SECONDARY
1237666660748230814837442802SECONDARY
1237678882074656796837442802SECONDARY
1237649807295578398837442802SECONDARY
1237655717171495080837442802SECONDARY
1237656893994565957837442802SECONDARY
1237657082968866865837442802SECONDARY
1237659746386444476837442802SECONDARY
1237660007844282610837442802SECONDARY
1237660235475845390837442802SECONDARY
1237663443819495511837442802SECONDARY
1237663503947202783837442802SECONDARY