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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 J012953.89-011152.4123766378259664079668338097PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663782596640796683380971PRIMARY
1237663889955029123683380972SECONDARY
1237667128360763544683380972SECONDARY
1237667171325378640683380972SECONDARY
1237676323890593939683380972SECONDARY
1237678882104213604683380972SECONDARY
1237646010019217506683380972SECONDARY
1237646503929643128683380972SECONDARY
1237646645665202227683380972SECONDARY
1237649813739339936683380972SECONDARY
1237653010835701912683380972SECONDARY
1237657108201209980683380972SECONDARY
1237657868413108383683380972SECONDARY
1237659753916792955683380972SECONDARY
1237659882750541840683380972SECONDARY
1237659904257228954683380972SECONDARY
1237660024513626130683380972SECONDARY
1237660222084284498683380972SECONDARY
1237660784697213052683380972SECONDARY
1237663275790106750683380972SECONDARY
1237663524917543076683380972SECONDARY
1237663713876705300683380972SECONDARY