Object Explorer

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 name	objid	thingid	mode description
SDSS J025957.38+005827.6	1237678437018698162	117961793	PRIMARY

Other Observations of this "Thing"

objid	thingid	mode	mode description
1237678437018698162	117961793	1	PRIMARY
1237645943973937525	117961793	2	SECONDARY
1237646012713468201	117961793	2	SECONDARY
1237646382057849134	117961793	2	SECONDARY
1237646510906671407	117961793	2	SECONDARY
1237646648359387381	117961793	2	SECONDARY
1237646708477985206	117961793	2	SECONDARY
1237653013529952554	117961793	2	SECONDARY
1237653610492133669	117961793	2	SECONDARY
1237656552542634454	117961793	2	SECONDARY
1237656604080144830	117961793	2	SECONDARY
1237657110895395398	117961793	2	SECONDARY
1237657871107359079	117961793	2	SECONDARY
1237659756610978387	117961793	2	SECONDARY
1237659885444727107	117961793	2	SECONDARY
1237660027207811455	117961793	2	SECONDARY
1237660241922097733	117961793	2	SECONDARY
1237660336416293312	117961793	2	SECONDARY
1237663239810450165	117961793	2	SECONDARY
1237663278484357450	117961793	2	SECONDARY
1237663527611728445	117961793	2	SECONDARY
1237663785290826334	117961793	2	SECONDARY
1237663892649279855	117961793	2	SECONDARY
1237667131054948561	117961793	2	SECONDARY
1237676326584844667	117961793	2	SECONDARY

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Other photometric observations (detections)

This detected object and its associated "Thing" (Primary observation)

Other Observations of this "Thing"