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 J002709.63+003513.91237663716017308287106773732PRIMARY

Other Observations of this "Thing"

objidthingidmodemode description
12376637160173082871067737321PRIMARY
12376637847372434691067737322SECONDARY
12376671734659813011067737322SECONDARY
12376784337911160641067737322SECONDARY
12376460121598859311067737322SECONDARY
12376530129763048261067737322SECONDARY
12376597560573959831067737322SECONDARY
12376599063978319091067737322SECONDARY
12376600266542293651067737322SECONDARY
12376602242248873841067737322SECONDARY
12376603573610090041067737322SECONDARY
12376632779307097281067737322SECONDARY
12376634798102946141067737322SECONDARY
12376635270581461831067737322SECONDARY