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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 J015250.39-001709.8123766378367287307788068227PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783672873077880682271PRIMARY
1237663891031326791880682272SECONDARY
1237667129436995746880682272SECONDARY
1237676324966891756880682272SECONDARY
1237646011095515214880682272SECONDARY
1237646505005875357880682272SECONDARY
1237646646741434485880682272SECONDARY
1237653011911999537880682272SECONDARY
1237657109277442173880682272SECONDARY
1237657869489340581880682272SECONDARY
1237659754993025152880682272SECONDARY
1237659883826774109880682272SECONDARY
1237660025589858419880682272SECONDARY
1237660205948731490880682272SECONDARY
1237660223160516740880682272SECONDARY
1237660334798340167880682272SECONDARY
1237660785773445254880682272SECONDARY
1237663276866338997880682272SECONDARY
1237663525993775241880682272SECONDARY