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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 J003326.31-002551.7123765719037201631185805454PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190372016311858054541PRIMARY
1237657362152292605858054542SECONDARY
1237660007867678903858054542SECONDARY
1237660235499241682858054542SECONDARY
1237663203307225273858054542SECONDARY
1237663310680686798858054542SECONDARY
1237663503970599033858054542SECONDARY
1237663542625894645858054542SECONDARY
1237663740177154231858054542SECONDARY
1237666300000338151858054542SECONDARY
1237666338648490193858054542SECONDARY
1237666381588594863858054542SECONDARY
1237666407372357792858054542SECONDARY
1237666497541439662858054542SECONDARY
1237666540488818926858054542SECONDARY
1237666635001102506858054542SECONDARY
1237666660771627117858054542SECONDARY
1237645877412102339858054542SECONDARY
1237653011903283416858054542SECONDARY
1237656851050463459858054542SECONDARY
1237656855335927992858054542SECONDARY
1237656906895589610858054542SECONDARY
1237657104452681974858054542SECONDARY