| Target Name |
The name of a target to be resolved by SIMBAD or NED. (This is not
the target name of the observation.) SIMBAD and NED can return the positions of fixed targets only;
they do not calculate the positions of moving targets, such as planets, comets, or asteroids.
To search for a moving target, it is best to qualify the Target Description field (see below). |
| Resolver |
The resolver (SIMBAD or NED) to be used to resolve the target name into coordinates. |
| RA (J2000) |
The right ascension to search on. When given as a single value,
with a single value for declination and radius, a search around the
position will be done, within the radius specified (see below). |
| Dec (J2000) |
The declination to search on. When given as a single value,
with a single value for right ascension and radius, a search around the
position will be done, within the radius specified (see below). |
| Radius (arcmin) |
The search radius. If the search radius is not given,
then the search will be done for the exact coordinates given,
which is probably not what you want. |
| Output Columns |
The output columns to see in the results.
Currently, Data Files
and Variance Maps
will always appear in the output.
You can select multiple columns in this listbox. On some computer platforms,
you may need to hold down the <Ctrl> key while clicking on selections
to select multiple output columns.
|
| Preview |
A link to a four-chip FITS preview image.
Previews are generated on the fly, so it will take a few
seconds before the download begins. Note: Not all
associations will have previews, apparently due to problems
encountered in the preview generation pipeline. We do not
know ahead of time which associations do not have previews,
so even though all associations will have a preview link,
the link will not work for a small number of associations.
|
| Data Files |
Links to the FITS data files. All links to
the file containing all four chips in a single image,
while PC1, WF2, WF3, and WF4
link to separate files containing only one chip per image.
When you click on one of these links, the file will start
downloading immediately.
|
| Variance Maps |
Links to the FITS variance maps. All links to
the file containing all four chips in a single variance map image,
while PC1, WF2, WF3, and WF4
link to separate files containing only one chip per variance map image.
When you click on one of these links, the file will start
downloading immediately.
|
| Association Name |
The association name. This name is derived from the leader image
(the first deepest exposure). |
| Target Name |
The name of the target, as given by the PI. |
| RA (J2000) |
The J2000 right ascension of the observation. |
| DEC (J2000) |
The J2000 declination of the observation. |
| PA Aper |
The position angle of the aperture. |
| V3 Pos Angle |
The V3 position angle; that is, the roll angle of the entire optical telescope assembly. |
| Exp Time |
The total exposure time of the association, in seconds.
This is the sum of the exposure times of the individual exposures
that went into the association. |
| Filter |
The name of the filter used in the observation. |
| Galactic Longitude |
The galactic longitude of the observation. |
| Galactic Latitude |
The galactic latitude of the observation. |
| Ecliptic Longitude |
The ecliptic longitude of the observation. |
| Ecliptic Latitude |
The ecliptic latitude of the observation. |
| Proposal ID |
The proposal ID for the observation. |
| PI Name |
The last name of the principal investigator of the proposal. |
| Number of Members |
The number of members that went into the association. |
| Assoc Type |
The way in which the exposures were associated:
- 1. WCS offsets
- The members' offsets from the leader of the association
(defined to be the first deepest exposure)
were all derived from WCS information.
- 2. Jitter offsets
- The members' offsets from the leader of the association
were all derived from jitter information.
- 3. Mixed WCS and Jitter offsets
- The members' offsets from the leader of the association
were partly derived from WCS and partly from jitter information.
- 4. Cross-correlation offsets
- The members' offsets from the leader of the association
were all measured by cross-correlation.
- 5. Mixed Cross-correlation and WCS
- The members' offsets from the leader of the association
were partly derived from cross-correlation and partly
from WCS information.
- 6. Mixed Cross-correlation and Jitter
- The members' offsets from the leader of the association
were partly derived from cross-correlation and partly
from jitter information.
- 7. Mixed WCS, Jitter, and Cross-correlation
- The members' offsets from the leader of the association
were partly derived from WCS, partly from jitter, and
partly from cross-correlation information.
|
| Proposal Title |
The title of the proposal. |
| Science Category |
The science category of the proposal. |
| Target Description |
A description of the target, as given by the PI. |
