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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 J025953.73+000309.0123766378421708442097290131PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663784217084420972901311PRIMARY
1237663891575537971972901312SECONDARY
1237667129981207028972901312SECONDARY
1237676325511102775972901312SECONDARY
1237676673934950853972901312SECONDARY
1237645942900195812972901312SECONDARY
1237646011639726378972901312SECONDARY
1237646380984041971972901312SECONDARY
1237646509832864148972901312SECONDARY
1237646647285645820972901312SECONDARY
1237653012456145357972901312SECONDARY
1237653609418391922972901312SECONDARY
1237656551468892596972901312SECONDARY
1237656603006402877972901312SECONDARY
1237657109821653603972901312SECONDARY
1237657870033551938972901312SECONDARY
1237659755537236524972901312SECONDARY
1237659884370985411972901312SECONDARY
1237660026134069701972901312SECONDARY
1237660240848355779972901312SECONDARY
1237660335342551406972901312SECONDARY
1237663238736708172972901312SECONDARY
1237663277410550270972901312SECONDARY
1237663526537986608972901312SECONDARY