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 J022844.11-085525.0 | 1237653500969549997 | 27438887 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237653500969549997 | 27438887 | 1 | PRIMARY | 1237653573983928539 | 27438887 | 2 | SECONDARY | 1237653582573928559 | 27438887 | 2 | SECONDARY | 1237653604047454358 | 27438887 | 2 | SECONDARY | 1237654377142878377 | 27438887 | 2 | SECONDARY | 1237676672319226081 | 27438887 | 2 | SECONDARY | 1237649961912696968 | 27438887 | 2 | SECONDARY | 1237653470904385721 | 27438887 | 2 | SECONDARY |
|