HELP: ING Archive fields


General Description


COMMON KEYWORD DESCRIPTION
Airmass   Value of the airmass at the beginning of the exposure
Altnames   Alternate names other than that typed by the user.
Observation date Q,I Observation date in the format yyyymmdd.
DEC (J2000) Q,I Declination (J2000)
Detector Q Name of the detector in use for this exposure.
Exposure   This is the exposure time in seconds.
Tape Name Q,I The name of the fitstape on which the data are stored. These are in the format ???D####, where ??? is the name of the telescope (JKT, INT or WHT) and #### is the tape number without leading zeros. E.g. WHTD12, INTD1003.
Instrument Q Name of the instrument used for this exposure.
Objtype   This is a series of object types.
Observer   The name of the observer. In general the observer's initials.
Obstype   The observation type. This is what is used to distinguish target observations from, say flat field exposures.
Origin   Origin of the exposure. Hopefully, the ING!
Patt_ref Q This is a reference key to the original PATT proposal.
Photspec Q On input this is a switch that allows you to restrict your query to either photometry, spectroscopy or both. Note that you will get both if you highlight both or neither. On output you'll get either 'S' for spectroscopy, 'P' for photometry or 'U' for unknown.
RA (J2000) Q,I Right Ascension (J2000).
Recno I An integer that uniquely describe an exposure. It is formed from the fits tape name and the fits file number.
Runno   The fits run number as it was assigned at the telescope. This is not an indication of the file's position on the fits tape!.
science frames only   By default the user only sees the science frames, that is the frames that are of obstype='TARGET'. If the user wants to see all the exposures including things like arcs and flat fields, then this should be switched off.
Search box Q The size of a search box in the format HH MM SS (in degrees not time). If a central RA and DEC is provided by either the user or the name resolver, then this is the size of the search box which will be used.
Skyquality   A numerical grading of the sky quality. Unimplemented
Target Name Q The name of the object as it was typed by the user. In some cases the user's input has been edited to make it more helpful.
Target Source Q The user can search for objects by name in two different ways. By default the user specifies a name and either SIMBAD or NED is called to resolve the name and return its J2000 coordinates. The search box is then used to search the archive by position for the object. On other hand it is possible to search the object name as the observer entered it. This method doesn't return any positional search box, so a query by the ING target name should be done in conjunction with other restrictions otherwise you could be in for a long wait.
Telescope Q The name of the telescope on which the observation was done. These consist of WHT, INT or JKT.
Utstart   The UT at the start of the exposure.


SPECTRAL KEYWORD DESCRIPTION
Cenwave   The central wavelength for spectra. Note that spectra prior to 1996 don't have this information.
Dispersion Q The dispersion of a spectrum in Angstroms per pixel. Note that spectra prior to 1996 don't have this information.
Wavelength Q The approximate wavelength range of a spectrum (in Angstroms). Note that spectra prior to 1996 don't have this information.


IMAGING KEYWORD DESCRIPTION
Filter Band Q The band name for the filter used in the observations.
Filter   An identifier for the piece of glass used as the filter in the observation. Not implimented yet.
Photo Sys Q The photometric system for the filters used in the observation.


Extra information

The following table contains the remaining items the user will find in the description of an individual observation. These all refer to specifics of the instrument that was used in the observation. The name of the instruments are given in the second column. You cannot query on these items.


EXTRA KEYWORD DESCRIPTION
Polar ISIS The name of the polarisation plate used in the observation
Grism LDSS2 The name of the dispersing grism
Mask LDSS2 The name of the slit mask used in the observation
Etalon TAURUS2 The name of the etalon used in a Fabry-Perot observation
Pfilter TAURUS2 The name of the pupil filter used in a Fabry-Perot observation
Centord UES The central order number of an observation
Module WYFFOS The name of the fibre module used in an observation



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