SPICE User's Guide - IRSA

A.6 Optimum
Runs the Optimal extraction algorithm. To run, type:
unix% optimum
Where the options are as follows:
-p Input stellar profile template FITS file.
SPICE User’s Guide
-I The input 2D spectrum from which you wish to extract a 1D spectrum.
-u The name of the uncertainty file that goes with the input 2D spectrum. If you do
not specify an uncertainty file, the extraction will be profile-weighted only, and
will use the default uncertainty value set by the flag –default_unc (see below) for
all pixe ls.
-b The name of the mask FITS file that goes with the input 2D spectrum.
-w The name of the *wavsamp.tbl file. This file specifies the location of the spectral
orders on the array in x-y coordinates. It consists of pseudorectangles, which
describe the fractional pixels that comprise each wavelength in the spectrum.
You should choose the appropriate file in the cal/ subdirectory of your SPICE
insta llation. The file you choose should match both the Spitzer pipeline version
with which your data were processed and the IRS module with which you are
working.
-ridge The name of the output table from running the Ridge module.
-o The name of the output extraction table file.
-r The name of the output rectified flux FITS file.
-r_unc The name of the output rectified uncertainty FITS file. This is an optional
intermediate product. SPICE will not write out this file unless an output filename
is specified by the user.
-r_bmask The name of the output rectified BMASK FITS file. This is an optional
intermediate product. SPICE will not write out this file unless an output filename
is specified by the user.
SPICE on the Command Line 48 A.6 Optimum