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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 J002339.62-003258.2123765719037090213485827291PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190370902134858272911PRIMARY
1237657362151243814858272912SECONDARY
1237660007866630165858272912SECONDARY
1237660235498192925858272912SECONDARY
1237663203306176533858272912SECONDARY
1237663310679638053858272912SECONDARY
1237663461003296845858272912SECONDARY
1237663503969484876858272912SECONDARY
1237663542624845874858272912SECONDARY
1237663740176105499858272912SECONDARY
1237666299999289397858272912SECONDARY
1237666338647441440858272912SECONDARY
1237666381587480675858272912SECONDARY
1237666407371243599858272912SECONDARY
1237666497540390937858272912SECONDARY
1237666634999988313858272912SECONDARY
1237666660770512988858272912SECONDARY
1237656851049414725858272912SECONDARY
1237656855334879262858272912SECONDARY
1237656906894540861858272912SECONDARY
1237657104451633201858272912SECONDARY