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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 J030001.01+000115.5123766378421708394997117500PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663784217083949971175001PRIMARY
1237663891575537687971175002SECONDARY
1237667129981272078971175002SECONDARY
1237676325511102496971175002SECONDARY
1237676673934950511971175002SECONDARY
1237645942900195383971175002SECONDARY
1237646011639726114971175002SECONDARY
1237646380984107022971175002SECONDARY
1237646509832929292971175002SECONDARY
1237646547962888216971175002SECONDARY
1237646647285645379971175002SECONDARY
1237653012456210456971175002SECONDARY
1237653609418391588971175002SECONDARY
1237656551468892208971175002SECONDARY
1237656603006402602971175002SECONDARY
1237657109821653064971175002SECONDARY
1237657870033616914971175002SECONDARY
1237659755537236024971175002SECONDARY
1237659884370985007971175002SECONDARY
1237660026134069287971175002SECONDARY
1237660240848355373971175002SECONDARY
1237660335342551067971175002SECONDARY
1237663238736707654971175002SECONDARY
1237663277410615313971175002SECONDARY
1237663526537986112971175002SECONDARY