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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 J002051.10-005656.8123765718983376932875674248PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657189833769328756742481PRIMARY
1237657361614045409756742482SECONDARY
1237660007329431799756742482SECONDARY
1237660234960994545756742482SECONDARY
1237663202768978189756742482SECONDARY
1237663310142439675756742482SECONDARY
1237663460466163866756742482SECONDARY
1237663503432351946756742482SECONDARY
1237663542087647505756742482SECONDARY
1237663739638907102756742482SECONDARY
1237666299462091019756742482SECONDARY
1237666338110243010756742482SECONDARY
1237666381050347682756742482SECONDARY
1237666406834110658756742482SECONDARY
1237666497003192552756742482SECONDARY
1237666634462855368756742482SECONDARY
1237666660233380047756742482SECONDARY
1237678433790198097756742482SECONDARY
1237645876873855234756742482SECONDARY
1237656850512216352756742482SECONDARY
1237656854797680880756742482SECONDARY
1237656906357342468756742482SECONDARY
1237657103914434818756742482SECONDARY