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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 J003015.07-004713.9123766378312695832177815630PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783126958321778156301PRIMARY
1237667171855696078778156302SECONDARY
1237646010549600416778156302SECONDARY
1237653011366084790778156302SECONDARY
1237659754447110316778156302SECONDARY
1237659904787611846778156302SECONDARY
1237660025043943648778156302SECONDARY
1237660222614601909778156302SECONDARY
1237660355750723778778156302SECONDARY
1237663276320489675778156302SECONDARY
1237663478200008875778156302SECONDARY
1237663525447860412778156302SECONDARY
1237663714407022824778156302SECONDARY