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HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

INTEGRAL U.S. Guest Observer Facility
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User manual for analysing SPI data
For more information please read the individual help files of the programs used (e.g. spi_science_analysis --help). For a detailed step-by-step guideline have a look on the SPI cookbook
step purpose What you have to do
setup   have your own data_rep on your account. Follow the setup advice for GSFC or the setup advice for ISDC.
setenv COMMONLOGFILE mylog.txt define a logfile If you want to have a log file, set it now. To unset it later just type "unsetenv COMMONLOGFILE"
emacs dols.txt create a list of SCWs Here is one example for a list of one SCW: dols.txt and a list for the Cygnus hexagonal observation: dols_cyg.txt. Please have a look on the list of usable data.
og_create idxSwg="dols.txt" ogid="obs_id" baseDir="." create the OG give a (up to now not existing!) name for the obs-branch (obs_id).
cd obs/obs_id   go to your obs branch.
blc_spipoint only for
revolution 1 - 10
For data before revolution 11 spipoint is not working - therefore apply blc_spipoint first. spipoint is also not working for revolution 11 science window 00112901xxx! Note: blc_spipoint sometimes crashes when using more than one science window at a time.
spi_science_analysis
(if you want to avoid the GUI, unsetenv DISPLAY before starting spi_science_analysis !)
do the analysis start with spi_science_analysis (with level GTI, after applying blc_spipoint for revolution 1 - 10, with level POIN for revolution 11 onward), fill in the parameters for the analysis (either off-line using an editor, or by using the GUI which will appear on the screen). The following parameter file can be a basis for your analysis: spi_science_analysis.par (if you want to use it, copy it to your $PFILES/spi_science_analysis.par). You can get a detector list if you are not familiar with our pseudo-detector scheme. Which IRFs do you want to use (leave empty for automatic access)? Begin with small numbers of energy bins!
Read also the user manuals of spiros.
spi_dsp_display
spi_spectral_display
fv spi/source_res.fits
...
output check use spi_dsp_display to plot the detector spectra and spi_spectral_display for the spiros output spectra. Read also the log file, check the images, events table and so on. If your analysis is failing - check for missing/wrong input parameters first and check the frequently asked question page.
You can fit the SPIROS spectra using XSPEC: How to use XSPEC on SPIROS output spectra
spi_science_analysis step back and repeat parts of the analysis Run spi_science_analysis if you want to do only the IMA level again or run SPIROS manually. If you want to start from binning again, use spi_science_analysis.

In case of questions and comments: contact me at GSFC.