map-spectra
calculates
the mapping between science plane (wavelength and slit coordinate) and
ccd focal plane for a given observation set.
USAGE
map-spectra observset
INPUT
observset.obsdef name
of an existing observation definition file
OUTPUT
observset.map is
a file with the mapping information
PARAMETERS
minlambda
minimum wavelength
maxlambda
maximum wavelength
minpixl
minimum number of pixels of spectrum on a
chip
use_holes
map alignment holes as well as slits
Details
minpixl
allows
one to discard very short spectrum segments if desired. map-spectra
does not map slits when an end of the slit falls off the edge of the
ccd. Slits that are not mapped because an insufficent number of pixels
are entirely on one or more ccd's are reported when the program exits. You must set use_holes to "y" if you intend to use the alignment stars during the extraction in extract-2dspec.