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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 J015840.85+003159.31237663784747270173106497356PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376637847472701731064973561PRIMARY
12376638921056584381064973562SECONDARY
12376671305113928271064973562SECONDARY
12376763260412887211064973562SECONDARY
12376460121698468571064973562SECONDARY
12376465060802724471064973562SECONDARY
12376466478158315971064973562SECONDARY
12376530129863312151064973562SECONDARY
12376571103518392931064973562SECONDARY
12376578705637376621064973562SECONDARY
12376597560674222561064973562SECONDARY
12376598849011712261064973562SECONDARY
12376600266642555031064973562SECONDARY
12376602070231285871064973562SECONDARY
12376602242349138471064973562SECONDARY
12376603358726718191064973562SECONDARY
12376607868478423691064973562SECONDARY
12376632392668938661064973562SECONDARY
12376632779407360701064973562SECONDARY
12376635270681723441064973562SECONDARY