| FIELD |
DESCRIPTION |
| Search Method |
This option allows the archive user to take advantage of the SIMBAD name
resolver. If the default Use Name Resolver
option is selected, any right ascension and declination values entered in the search
fields will be ignored. Instead, the right ascension and declination will be determined from
the object name by the name resolver, and these will be used for the search instead of the
object name. This method of searching allows data for an object to be found, regardless
of what name the observer gave it. The * wildcard character is not permitted in the object name
when this method is being used.
The other search method, Don't Use Name Resolver
does not use the name resolver to derive coordinates. It will search using whatever
object name, RA, and DEC you enter in the fields. With this method, the * wildcard character
may be used in the object name. |
| Object Name |
The name of the observed object, as given by the observer. When searching on this field,
it is usually best to use the name resolver as well (see above). In many runs,
observations which do not share the same name as the object are taken of the background sky.
These observations are therefore not returned using a simple search based solely on object name.
A query using the name resolver will return these observations, however. |
| Equinox for RA and DEC |
This field has two possible values: j2000 (the default) and b1950. The search engine
will assume that the right ascension and declination that you enter are in the coordinate
system specified by this field. Note that this field has no bearing on the right ascension
and declination values in the output query results. Output RA and DEC are always j2000. |
| Search Box |
The size of the box around the stated central right ascension and declination used to search
the database for observed objects. |
| Right Ascension |
The values of right ascension stored in the database are precessed to j2000. Likewise,
values displayed in tabular output are given in j2000. The user may specify search coordinates
in either j2000 or b1950 however (see above), and the interface to the database will automatically
convert them to do the search.
|
| Declination |
Similarly, the declination is also precessed to j2000 within the database, and in tabular output.
Searches may be performed with either j2000 or b1950 coordinates (see above).
|
| Date (UT) |
The UT observation date should be given in the format yyyy-mmm-dd. A range of dates may
be specifed using double dots. For example: 1997-Mar-03 .. 1997-Aug-19
|
| Time Zone |
Time zone for the Start Time and End Time fields. The options are UT or HST (-1000). (Note that
the Date field must always be specified in UT, regardless of what time zone is used.) |
| Start Time |
The time that a particular observation commenced. |
| End Time |
The time that the observation ended. |
| Run Number |
Sequence number of the frame on any particular night. |
| Observer Name |
Name of the observer(s), if given. |
| Number of Group |
Number of the observation group. |
| Observation Type |
Type of exposure. For example: FLAT, OBJECT, or SKY. |
| Observing Mode |
Observing mode. For example: STARE or CHOP. |
| Start Airmass |
Airmass at the start of the observation. |
| End Airmass |
Airmass at the end of the observation. |
| Filename |
Name of the file that the header data comes from. |
| Instrument(s) |
The UKIRT telscope currently has two instruments: the IRCAM3 infrared camera, and the
CGS4 spectrograph. |
| Detector Rows |
Number of detectors in readout row. |
| Detector Columns |
Number of detectors in readout column. |
| Exposure Time |
Exposure time in seconds. |
| Filter Name |
Specific name of the filter(s) used. For example: B2. |
| Grating Name |
Name of the grating. |
| Grating Wavelength |
Grating wavelength in microns. |
| Slit Width |
Width of slit in pixels. |
| CVF Wavelength |
CVF wavelength in microns. |
| Pixel Size |
Pixel size in arcseconds. |
| Cloud Coverage |
|
| Seeing (FWHM am) |
Full-width half-maximum seeing, in arcseconds at K, during am hours. |
| Seeing (FWHM pm) |
Full-width half-maximun seeing, in arcseconds at K, during pm hours. |
| Hours Observed |
Number of hours that the telescope was observing. |
| Wind Speed - Average |
Average wind speed in mph at the telescope. |
| Wind Speed - Peak |
Peak wind speed in mph at the telecope. |
| Humidity - High |
Higest measured humidity during the observation period. |
| Humidity - Low |
Lowest measured humidty during the observation period. |
United Kingdom Infrared Telescope Archive