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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 J024240.71-000047.5123766640792331888694120575PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237666407923318886941205751PRIMARY
1237666498092466203941205752SECONDARY
1237666541039845513941205752SECONDARY
1237666635552129042941205752SECONDARY
1237666661322588231941205752SECONDARY
1237666725719638046941205752SECONDARY
1237646547960987697941205752SECONDARY
1237653578815701026941205752SECONDARY
1237656512287539268941205752SECONDARY
1237656546638430270941205752SECONDARY
1237657233840275530941205752SECONDARY
1237657813660270676941205752SECONDARY
1237663203858251851941205752SECONDARY
1237663543176921144941205752SECONDARY
1237666339199516746941205752SECONDARY