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 J004852.41-002430.8 | 1237663783665860790 | 87917976 | PRIMARY |
Other Observations of this "Thing"
objid | thingid | mode | mode description | 1237663783665860790 | 87917976 | 1 | PRIMARY | 1237667172394598555 | 87917976 | 2 | SECONDARY | 1237676324959879339 | 87917976 | 2 | SECONDARY | 1237645877413806168 | 87917976 | 2 | SECONDARY | 1237646586069450825 | 87917976 | 2 | SECONDARY | 1237646646734422139 | 87917976 | 2 | SECONDARY | 1237653011904987219 | 87917976 | 2 | SECONDARY | 1237659754986012826 | 87917976 | 2 | SECONDARY | 1237659905326514294 | 87917976 | 2 | SECONDARY | 1237660025582846081 | 87917976 | 2 | SECONDARY | 1237660223153504419 | 87917976 | 2 | SECONDARY | 1237660356289626215 | 87917976 | 2 | SECONDARY | 1237663276859392137 | 87917976 | 2 | SECONDARY | 1237663478738911382 | 87917976 | 2 | SECONDARY | 1237663525986762889 | 87917976 | 2 | SECONDARY | 1237663714945925290 | 87917976 | 2 | SECONDARY |
|