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 J021604.14-080540.8 | 1237670957329285226 | 31255890 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237670957329285226 | 31255890 | 1 | PRIMARY | 1237653472513687613 | 31255890 | 2 | SECONDARY | 1237653502578851936 | 31255890 | 2 | SECONDARY | 1237653575593164950 | 31255890 | 2 | SECONDARY | 1237653584183165007 | 31255890 | 2 | SECONDARY | 1237653605656690777 | 31255890 | 2 | SECONDARY | 1237654378752180276 | 31255890 | 2 | SECONDARY |
|