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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 J002707.28+003534.51237663716017307732106773707PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376637160173077321067737071PRIMARY
12376637847372432181067737072SECONDARY
12376671734659810111067737072SECONDARY
12376784337911154211067737072SECONDARY
12376460121598199141067737072SECONDARY
12376530129763042881067737072SECONDARY
12376597560573952901067737072SECONDARY
12376599063978313171067737072SECONDARY
12376600266542285501067737072SECONDARY
12376602242248868841067737072SECONDARY
12376603573610086741067737072SECONDARY
12376632779307091231067737072SECONDARY
12376634798102938591067737072SECONDARY
12376635270581453911067737072SECONDARY