SPICE User's Guide - IRSA

SP ICE User’s Guide
pixels that comprise each wavelength in the spectrum. You should choose the appropriate
file in the cal/ subdirectory of your SPICE installation. 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.
-c The Profile module divides each pseudorectangle into this number of cuts and integrates
the signal within each cut. Allowed values are integers between 1 and 2000. We
recommend that users keep this at the default value (1000 for SL and LL modules, 200
for SH and LH) adopted by the SPICE GUI.
-m Size of sliding median. Allowed values are odd integers between 1 and 21. Default value
is 7.
-v Level of verbosity, integer. Default value is 1
-ord This selects which orders are included in the median-combined profile. The default is to
include only the targeted orders in the profile. For hi-res observations, this is all orders,
but for lo-res observations it is usually not. You can specify up to 14 comma-separated
integers – no spaces, where the lo-res orders are designated as 1, 2 and 3, and the hi-res
ones run from 11-20.
-n Name of a namelist file listing all the input parameters. This can be used instead of
specifying all of the flags on the command line. Default is namelist.nl.
The Profile module will generate a profile table of the wavelength-collapsed average spatial
profile for the selected orders. Below is a plot of the data in this table. In this particular case, we
see two features - a positive one on the left and a negative one on the right. The left peak
represents the background-subtracted nod 1 spectrum, while the right-hand dip represents the sky
background in the nod 1 image minus the nod 2 spectrum.
SPICE on the Command Line 44 A.3 Profile