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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 J002944.85-001218.0123765719090849402894830370PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908494028948303701PRIMARY
1237657362688770354948303702SECONDARY
1237660008404156621948303702SECONDARY
1237660236035719436948303702SECONDARY
1237663203843703018948303702SECONDARY
1237663311217164670948303702SECONDARY
1237663504507011411948303702SECONDARY
1237663543162372458948303702SECONDARY
1237663740713631989948303702SECONDARY
1237666300536815997948303702SECONDARY
1237666339184967927948303702SECONDARY
1237666382125072568948303702SECONDARY
1237666407908770171948303702SECONDARY
1237666498077917384948303702SECONDARY
1237666541025296708948303702SECONDARY
1237666635537580178948303702SECONDARY
1237666661308039548948303702SECONDARY
1237646011086405949948303702SECONDARY
1237656851586941332948303702SECONDARY
1237656855872405711948303702SECONDARY
1237656907432067422948303702SECONDARY
1237657104989159826948303702SECONDARY