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 J002925.92-001104.6123765719090842857794831318PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
1237657190908428577948313181PRIMARY
1237657362688704738948313182SECONDARY
1237660008404091182948313182SECONDARY
1237660236035653952948313182SECONDARY
1237663203843637537948313182SECONDARY
1237663311217164397948313182SECONDARY
1237663504507011260948313182SECONDARY
1237663543162372279948313182SECONDARY
1237663740713566435948313182SECONDARY
1237666300536815802948313182SECONDARY
1237666339184902421948313182SECONDARY
1237666382125007081948313182SECONDARY
1237666407908770052948313182SECONDARY
1237666498077851922948313182SECONDARY
1237666541025296508948313182SECONDARY
1237666635537514710948313182SECONDARY
1237666661308039361948313182SECONDARY
1237678432717308220948313182SECONDARY
1237645877948514656948313182SECONDARY
1237656851586941105948313182SECONDARY
1237656855872340232948313182SECONDARY
1237656907432067239948313182SECONDARY
1237657104989159557948313182SECONDARY