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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 J012236.06+003043.11237663784743273234106413208PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376637847432732341064132081PRIMARY
12376638921017267361064132082SECONDARY
12376671734720761121064132082SECONDARY
12376460121659150421064132082SECONDARY
12376465060763406071064132082SECONDARY
12376466478118997661064132082SECONDARY
12376530129823994051064132082SECONDARY
12376578705598058411064132082SECONDARY
12376597560634903891064132082SECONDARY
12376598848971741601064132082SECONDARY
12376599064039265321064132082SECONDARY
12376600266602584731064132082SECONDARY
12376602242309820011064132082SECONDARY
12376607868439105161064132082SECONDARY
12376632779368043151064132082SECONDARY
12376634798163889891064132082SECONDARY
12376635270642404471064132082SECONDARY