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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 J010521.48-005017.2123766378313082479777875836PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783130824797778758361PRIMARY
1237666724635213954778758362SECONDARY
1237676324424843314778758362SECONDARY
1237645876878704800778758362SECONDARY
1237646546876563601778758362SECONDARY
1237646585534414954778758362SECONDARY
1237653011369885809778758362SECONDARY
1237659754450976856778758362SECONDARY
1237659904791412835778758362SECONDARY
1237660025047810125778758362SECONDARY
1237660222618468443778758362SECONDARY
1237660355754524784778758362SECONDARY
1237663276324290661778758362SECONDARY
1237663478203875418778758362SECONDARY
1237663525451726916778758362SECONDARY
1237663714410889314778758362SECONDARY