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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 J030404.25-004913.0123766378314380099278209647PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663783143800992782096471PRIMARY
1237667128907923661782096472SECONDARY
1237676324437819555782096472SECONDARY
1237676672324468870782096472SECONDARY
1237678882114502830782096472SECONDARY
1237645941826912464782096472SECONDARY
1237646010566443135782096472SECONDARY
1237646379910758554782096472SECONDARY
1237646508759580826782096472SECONDARY
1237646546889539734782096472SECONDARY
1237646646212362476782096472SECONDARY
1237653011382861990782096472SECONDARY
1237653608345108606782096472SECONDARY
1237656550395609224782096472SECONDARY
1237656601933119607782096472SECONDARY
1237657108748370202782096472SECONDARY
1237657868960268499782096472SECONDARY
1237659754463953094782096472SECONDARY
1237659883297702020782096472SECONDARY
1237660025060786304782096472SECONDARY
1237660239775072404782096472SECONDARY
1237660334269268158782096472SECONDARY
1237663237663424712782096472SECONDARY
1237663276337266906782096472SECONDARY
1237663525464703237782096472SECONDARY