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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 J031952.97-005120.4123766629948168673074620400PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237666299481686730746204001PRIMARY
1237666338129838583746204002SECONDARY
1237666381069943200746204002SECONDARY
1237666406853706115746204002SECONDARY
1237666497022787976746204002SECONDARY
1237666539970167343746204002SECONDARY
1237666634482450688746204002SECONDARY
1237646546891309364746204002SECONDARY
1237646585549095588746204002SECONDARY
1237652997929042510746204002SECONDARY
1237653577746022699746204002SECONDARY
1237656511217860921746204002SECONDARY
1237656545568752085746204002SECONDARY
1237656592819159525746204002SECONDARY
1237657069558366941746204002SECONDARY
1237657232770597280746204002SECONDARY
1237657584954507777746204002SECONDARY
1237657812590592463746204002SECONDARY
1237660007349027121746204002SECONDARY
1237660338018845257746204002SECONDARY
1237663202788573579746204002SECONDARY
1237663327326372409746204002SECONDARY
1237663542107243094746204002SECONDARY