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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 J022856.00+002159.71237666408458747933103520217PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376664084587479331035202171PRIMARY
12376664986278298411035202172SECONDARY
12376665415752090561035202172SECONDARY
12376458784984924871035202172SECONDARY
12376565128229029041035202172SECONDARY
12376565471737938151035202172SECONDARY
12376570711634084911035202172SECONDARY
12376575865595494961035202172SECONDARY
12376599144318894741035202172SECONDARY
12376629681535058771035202172SECONDARY
12376635437122847741035202172SECONDARY
12376663010867283241035202172SECONDARY
12376663397348803701035202172SECONDARY