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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 J023616.95-004844.3123766378314072080278137270PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783140720802781372701PRIMARY
1237663890499174595781372702SECONDARY
1237667128904909000781372702SECONDARY
1237676324434739341781372702SECONDARY
1237678882111488087781372702SECONDARY
1237645941823832221781372702SECONDARY
1237646010563362952781372702SECONDARY
1237646546886525036781372702SECONDARY
1237646646209347753781372702SECONDARY
1237653011379847334781372702SECONDARY
1237653608342028416781372702SECONDARY
1237657108745355482781372702SECONDARY
1237657868957253802781372702SECONDARY
1237659754460938438781372702SECONDARY
1237659883294621854781372702SECONDARY
1237660025057706185781372702SECONDARY
1237660239771992211781372702SECONDARY
1237660334266188014781372702SECONDARY
1237660785241358527781372702SECONDARY
1237663237660410028781372702SECONDARY
1237663276334252218781372702SECONDARY
1237663525461688510781372702SECONDARY