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 J212012.71-002745.1 | 1237663542604792128 | 83835018 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237663542604792128 | 83835018 | 1 | PRIMARY | 1237666076634841818 | 83835018 | 2 | SECONDARY | 1237666299979236065 | 83835018 | 2 | SECONDARY | 1237666338627322638 | 83835018 | 2 | SECONDARY | 1237666407351190277 | 83835018 | 2 | SECONDARY | 1237666634979934982 | 83835018 | 2 | SECONDARY | 1237666660750459838 | 83835018 | 2 | SECONDARY | 1237649807297807042 | 83835018 | 2 | SECONDARY | 1237649910373024206 | 83835018 | 2 | SECONDARY | 1237655717173724267 | 83835018 | 2 | SECONDARY | 1237656893996794412 | 83835018 | 2 | SECONDARY | 1237656906874487570 | 83835018 | 2 | SECONDARY | 1237657190350849179 | 83835018 | 2 | SECONDARY | 1237659458085585550 | 83835018 | 2 | SECONDARY | 1237660007846511771 | 83835018 | 2 | SECONDARY | 1237660235478073956 | 83835018 | 2 | SECONDARY | 1237663443821724637 | 83835018 | 2 | SECONDARY | 1237663503949431760 | 83835018 | 2 | SECONDARY |
|