SAS

Description

Science Analysis System (SAS) is a collection of tasks, scripts and libraries, specifically designed to reduce and analyze data collected by the XMM-Newton observatory. Main detectors offers higher accuracy and sensitivity, even with smaller image ressolution then Chandra. Data (in basic mode - eventlist) are stored in FITS format, choice of events (and makes of specter etc.) is done by program `evselect`.

Usage

Upcoming modulesystem change alert!

Due to large number of applications and their versions it is not practical to keep them explicitly listed at our wiki pages. Therefore an upgrade of modulefiles is underway. A feature of this upgrade will be the existence of default module for every application. This default choice does not need version number and it will load some (usually latest) version.

You can test the new version now by adding a line

source /cvmfs/software.metacentrum.cz/modulefiles/5.1.0/loadmodules

to your script before loading a module. Then, you can list all versions of heasoft and load default version of heasoft as

module avail heasoft/ # list available modules
module load heasoft   # load (default) module

If you wish to keep up to the current system, it is still possible. Simply list all modules by

module avail heasoft

and choose explicit version you want to use.

The package does not yet have an initialization script in module, you must first load modul HEASOFT and after that run script /software/sas-13.5/sas-setup.sh. Before that you have to set variable SAS_DIR="/software/sas-13.5".

Download of data from archive can be done with use of web ïnterface or client itself (in Java) aioclient (here for observation number 0112770601)

  /storage/brno2/home/limu/bin/aioclient -S xsa.vilspa.esa.es -P 2002 -L 'GET obsno=0112770601 level=ODF

update

New installation of version 14.0 in trial time can be run by commands

   module add heasoft-6.15
   export SAS_DIR=/storage/brno2/home/limu/down/xmmsas_20141104_1833
   export LD_LIBRARY_PATH="/software/ubuntu12-compat/lib/x86_64-linux-gnu/:$LD_LIBRARY_PATH"
   . ${SAS_DIR}/sas-setup.sh

Documentation

Guides for basic operatins with data can be found here.

Practical guide for analysis can be obtained here.

Homepage

http://xmm.esac.esa.int/sas/current/documentation/sas_concise.shtml