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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 J010855.04+001828.31237666339726099192103115640PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376663397260991921031156401PRIMARY
12376664084499667451031156402SECONDARY
12376665415664928981031156402SECONDARY
12376666618492362371031156402SECONDARY
12376458784897111031031156402SECONDARY
12376465484875699091031156402SECONDARY
12376569723776536411031156402SECONDARY
12376571055302911241031156402SECONDARY
12376571914496251261031156402SECONDARY
12376572343668578511031156402SECONDARY
12376573632299013741031156402SECONDARY
12376577325872585151031156402SECONDARY
12376598800690059201031156402SECONDARY
12376600089452876711031156402SECONDARY
12376602365768506131031156402SECONDARY
12376632043848343901031156402SECONDARY
12376635050482081031031156402SECONDARY
12376635437035038011031156402SECONDARY
12376663010780122551031156402SECONDARY