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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 J211434.20+002452.21237663543677879604102350043PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376635436778796041023500431PRIMARY
12376660777079284781023500432SECONDARY
12376663010523227371023500432SECONDARY
12376663397004745871023500432SECONDARY
12376664084243423311023500432SECONDARY
12376666360530869051023500432SECONDARY
12376666618235465031023500432SECONDARY
12376498083709589021023500432SECONDARY
12376499114461766571023500432SECONDARY
12376530129552678141023500432SECONDARY
12376557182468760781023500432SECONDARY
12376568950699469411023500432SECONDARY
12376594591587375601023500432SECONDARY
12376600089196634431023500432SECONDARY
12376602365512263661023500432SECONDARY
12376634448948114511023500432SECONDARY
12376635050225834791023500432SECONDARY