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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 J002710.55+004331.81237663204917117655113252098PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376632049171176551132520981PRIMARY
12376633122906442411132520982SECONDARY
12376634626143030871132520982SECONDARY
12376635055804911931132520982SECONDARY
12376635442358521581132520982SECONDARY
12376637417870465371132520982SECONDARY
12376663016102955091132520982SECONDARY
12376663402584476551132520982SECONDARY
12376663831984870421132520982SECONDARY
12376664089822499961132520982SECONDARY
12376664991513319521132520982SECONDARY
12376665420987764501132520982SECONDARY
12376666366109946111132520982SECONDARY
12376666623815193371132520982SECONDARY
12376458790219945921132520982SECONDARY
12376568526604210011132520982SECONDARY
12376568569458202801132520982SECONDARY
12376569085055471501132520982SECONDARY
12376571060626395431132520982SECONDARY
12376571919819082221132520982SECONDARY
12376573637622500121132520982SECONDARY
12376600094775712111132520982SECONDARY
12376602371091991731132520982SECONDARY