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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 J010501.28-001327.0123766378366763023387944861PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783667630233879448611PRIMARY
1237667172396368000879448612SECONDARY
1237676324961648773879448612SECONDARY
1237646011090272347879448612SECONDARY
1237646505000697943879448612SECONDARY
1237646646736191630879448612SECONDARY
1237657732049993842879448612SECONDARY
1237659754987782330879448612SECONDARY
1237659879531675774879448612SECONDARY
1237659905328283735879448612SECONDARY
1237660025584615522879448612SECONDARY
1237660223155273887879448612SECONDARY
1237660356291395681879448612SECONDARY
1237663276861161568879448612SECONDARY
1237663478740680858879448612SECONDARY
1237663525988532371879448612SECONDARY
1237663714947694714879448612SECONDARY