DR12
Explore Home

Search

Imaging Summary
FITS
Finding chart (new window)
Other Observations
Neighbors
Galaxy Zoo
 
PhotoTag
Field
Frame
PhotoObj
PhotoZ

Cross-ID

Spec Summary
All Spectra

NED search
SIMBAD search
ADS search

Notes
Save in Notes
Show Notes

Print

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 J003313.46+001126.6123766378420102853696899139PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237663784201028536968991391PRIMARY
1237667172929766367968991392SECONDARY
1237676325495046784968991392SECONDARY
1237646011623670434968991392SECONDARY
1237659755521180541968991392SECONDARY
1237659905861681790968991392SECONDARY
1237660026118013640968991392SECONDARY
1237660223688672160968991392SECONDARY
1237660356824793420968991392SECONDARY
1237663277394494389968991392SECONDARY
1237663479274079067968991392SECONDARY
1237663526521930543968991392SECONDARY
1237663715481093051968991392SECONDARY