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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 J002943.92-001152.8123765719090849411994830371PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908494119948303711PRIMARY
1237657362688770583948303712SECONDARY
1237660008404156758948303712SECONDARY
1237660236035719661948303712SECONDARY
1237663203843703165948303712SECONDARY
1237663311217164441948303712SECONDARY
1237663504507011696948303712SECONDARY
1237663543162372714948303712SECONDARY
1237663740713632153948303712SECONDARY
1237666300536816310948303712SECONDARY
1237666339184968130948303712SECONDARY
1237666382125072641948303712SECONDARY
1237666407908770513948303712SECONDARY
1237666498077917487948303712SECONDARY
1237666541025297021948303712SECONDARY
1237666635537580228948303712SECONDARY
1237666661308039913948303712SECONDARY
1237646011086406137948303712SECONDARY
1237656851586941624948303712SECONDARY
1237656855872405864948303712SECONDARY
1237656907432067721948303712SECONDARY
1237657104989160155948303712SECONDARY