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 J230021.29+000539.8 | 1237663479263920343 | 97189275 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237663479263920343 | 97189275 | 1 | PRIMARY | 1237663526511771889 | 97189275 | 2 | SECONDARY | 1237666648952144066 | 97189275 | 2 | SECONDARY | 1237650010238812326 | 97189275 | 2 | SECONDARY | 1237653012429996220 | 97189275 | 2 | SECONDARY | 1237659905851457709 | 97189275 | 2 | SECONDARY | 1237660026107855030 | 97189275 | 2 | SECONDARY | 1237660223678513342 | 97189275 | 2 | SECONDARY | 1237660356814635152 | 97189275 | 2 | SECONDARY |
|