[fitsbits] FIT Keyword data dictionaries

[Peter Bunclark]

Doug Mink wrote:

> Standard keywords describing the observatory geographical position would be
> quite useful.  For example, we use
>
> SITENAME= 'flwo2   '
> SITELONG= '+110:52:39.0'       /LONGITUDE, DEGREES WEST OF ZERO
> SITELAT = '+31:40:51.4'        /LATITUDE, DEGREES
> SITEELEV=               2320.0 /ELEVATION, METERS
>

The FITS standard states angles should be in degrees!

The  UK's ING telescope have use the following for some years:
LATITUDE=            28.762000 / Telescope latitude  (degrees), +28:45:43.2
LONGITUD=            17.877639 / Telescope longitude (degrees), +17:52:39.5
HEIGHT  =                 2348 / [m] Height above sea level.
SLATEL  = 'LPO2.5  '           / Telescope name known to SLALIB
TELESCOP= 'INT     '           / 2.5m Isaac Newton Telescope

It is implied that the coordinates refer to the intersection
of the axes of the telescope producing the data frame.

Peter.