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 J203935.09-005304.6 | 1237663542063464665 | 73721781 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237663542063464665 | 73721781 | 1 | PRIMARY | 1237666076093514165 | 73721781 | 2 | SECONDARY | 1237666299437908140 | 73721781 | 2 | SECONDARY | 1237666338086060391 | 73721781 | 2 | SECONDARY | 1237666406809862435 | 73721781 | 2 | SECONDARY | 1237649806756544561 | 73721781 | 2 | SECONDARY | 1237655716632396157 | 73721781 | 2 | SECONDARY | 1237656893455467139 | 73721781 | 2 | SECONDARY | 1237660007305183671 | 73721781 | 2 | SECONDARY | 1237663443280396656 | 73721781 | 2 | SECONDARY | 1237663503408103762 | 73721781 | 2 | SECONDARY |
|