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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 J025959.06+000020.2123766378421708412297117471PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663784217084122971174711PRIMARY
1237663891575537843971174712SECONDARY
1237667129981272210971174712SECONDARY
1237676325511102547971174712SECONDARY
1237676673934950571971174712SECONDARY
1237645877965029433971174712SECONDARY
1237646380984107159971174712SECONDARY
1237646509832929429971174712SECONDARY
1237646547962888256971174712SECONDARY
1237646586620674203971174712SECONDARY
1237653012456210506971174712SECONDARY
1237653609418391750971174712SECONDARY
1237656551468892373971174712SECONDARY
1237656603006402730971174712SECONDARY
1237657109821653158971174712SECONDARY
1237657870033617022971174712SECONDARY
1237659755537236101971174712SECONDARY
1237659884370985166971174712SECONDARY
1237660026134069464971174712SECONDARY
1237660240848355520971174712SECONDARY
1237660335342551214971174712SECONDARY
1237663238736707749971174712SECONDARY
1237663277410615440971174712SECONDARY
1237663328397951089971174712SECONDARY
1237663526537986210971174712SECONDARY