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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 J025421.65+005532.81237678437018108215118126500PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376784370181082151181265001PRIMARY
12376459439733475071181265002SECONDARY
12376460127128783381181265002SECONDARY
12376463820571936911181265002SECONDARY
12376465109060159241181265002SECONDARY
12376466483587976121181265002SECONDARY
12376530135292971211181265002SECONDARY
12376536104915438191181265002SECONDARY
12376565525420444401181265002SECONDARY
12376566040795548281181265002SECONDARY
12376571108948052801181265002SECONDARY
12376578711067035881181265002SECONDARY
12376597566103882761181265002SECONDARY
12376598854441372531181265002SECONDARY
12376600272072215751181265002SECONDARY
12376602419215074981181265002SECONDARY
12376603278173800141181265002SECONDARY
12376603364156377681181265002SECONDARY
12376632398098599281181265002SECONDARY
12376632784837019901181265002SECONDARY
12376635276111383191181265002SECONDARY
12376637852902362421181265002SECONDARY
12376638926486243471181265002SECONDARY
12376671310543587601181265002SECONDARY
12376763265842547321181265002SECONDARY