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 J222126.07-004237.0 | 1237656567585177925 | 79921753 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237656567585177925 | 79921753 | 1 | PRIMARY | 1237656576164823354 | 79921753 | 2 | SECONDARY | 1237659904773456237 | 79921753 | 2 | SECONDARY | 1237660025029853562 | 79921753 | 2 | SECONDARY | 1237660222600511873 | 79921753 | 2 | SECONDARY | 1237660355736633731 | 79921753 | 2 | SECONDARY | 1237663478185918800 | 79921753 | 2 | SECONDARY | 1237663525433770322 | 79921753 | 2 | SECONDARY | 1237666647874142252 | 79921753 | 2 | SECONDARY | 1237650009160810710 | 79921753 | 2 | SECONDARY | 1237653011351994723 | 79921753 | 2 | SECONDARY |
|