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 J034551.06-001712.6	1237663238204883099	90320013	PRIMARY

Other Observations of this "Thing"

objid	thingid	mode	mode description
1237663238204883099	90320013	1	PRIMARY
1237663276878725289	90320013	2	SECONDARY
1237663526006161560	90320013	2	SECONDARY
1237667129449382058	90320013	2	SECONDARY
1237676324979277992	90320013	2	SECONDARY
1237645942368370854	90320013	2	SECONDARY
1237646011107901579	90320013	2	SECONDARY
1237646380452217017	90320013	2	SECONDARY
1237646509301039245	90320013	2	SECONDARY
1237646646753820828	90320013	2	SECONDARY
1237646706872418399	90320013	2	SECONDARY
1237653475736420488	90320013	2	SECONDARY
1237653608886567033	90320013	2	SECONDARY
1237656550937067727	90320013	2	SECONDARY
1237657109289828505	90320013	2	SECONDARY
1237657869501726906	90320013	2	SECONDARY
1237659755005411480	90320013	2	SECONDARY
1237659883839160458	90320013	2	SECONDARY
1237660025602244748	90320013	2	SECONDARY
1237660240316530805	90320013	2	SECONDARY
1237660334810661062	90320013	2	SECONDARY

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Other photometric observations (detections)

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

Other Observations of this "Thing"