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)
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IAU name | objid | thingid | mode description | SDSS J004557.03+000023.6 | 1237663784202404004 | 96923126 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237663784202404004 | 96923126 | 1 | PRIMARY | 1237667172931141794 | 96923126 | 2 | SECONDARY | 1237676325496422545 | 96923126 | 2 | SECONDARY | 1237645877950349408 | 96923126 | 2 | SECONDARY | 1237646586605994037 | 96923126 | 2 | SECONDARY | 1237653012441530490 | 96923126 | 2 | SECONDARY | 1237659755522556043 | 96923126 | 2 | SECONDARY | 1237659905863057538 | 96923126 | 2 | SECONDARY | 1237660026119389328 | 96923126 | 2 | SECONDARY | 1237660223690047643 | 96923126 | 2 | SECONDARY | 1237660356826169464 | 96923126 | 2 | SECONDARY | 1237663277395935380 | 96923126 | 2 | SECONDARY | 1237663479275520129 | 96923126 | 2 | SECONDARY | 1237663526523371643 | 96923126 | 2 | SECONDARY | 1237663715482468506 | 96923126 | 2 | SECONDARY |
|