The SAX LECS, MECS & PDS Data Analysis System
The SAXDAS software results from the inclusion of the MECS
PDS and HPGSPC instrument software in the
SAXLEDAS software, (SAX LECS Data Analysis System) originally developed
at ESA/SSD for the LECS instrument.
LECS, MECS, HPGSPC and PDS software in the SAXDAS share the same
basic philosophy
and some of the programs (a stronger similarity existing between LECS
and MECS procedures).
The dialog with the SAXDAS programs is through runstrings and
parameter files.
SAXDAS is freely available via anonymous ftp from
SAX SDC ftp server . Latest version currently distributed is 2.3.1 (released on April 2002).
LECS & MECS data analysis software:
Common programs
- fot2disk : dump FOT contents from tape
to disk
- foting : FOT filing (into FITS format)
- hkplot : HK plot and GTI creation
- mkgti : make GTI from boolean HK parameter
expression
- baryconv : barycentric time conversion
LECS programs
- compevfiles: find compatible event
list files
- catobs: concatenate observations
- eng2phys: convert HK data from engineering
to physical units
- calcgain: time dependent energy gain of
Fe calibration sources
- evelin: event linearization
- lemat
- some tools specifically dedicated to the
LECS hardware group.
MECS programs
- mksaxobs: select and concatenates observations.
It is a higher level interface to meselobs, that
finds compatible event list files and mecatobs, that concatenate observations.
- meeng2phys: convert HK data from engineering
to physical units
- mecalcgain: time dependent energy gain of
Fe calibration sources
- meevelin: event linearization
- darkearth: generate a dark earth filtered
event file.
- memat
PDS programs
- selection and concatenation of observation is performed by
mksaxobs.
- pdeng2phys: convert HK data from engineering
to physical units
- pdeveq: perform events selection and equalization.
- pdcollgti: generate GTI files related to the positions of the
collimators as provided by HK data.
- pdgrpgti: group GTI files in order to create on-source
and off-source time intervals.
- pdproducts: extract spectra and light curves from event files.
Pipelines
The saxpipe script is
available to run the LECS, MECS or PDS data reduction in an automized,
non-graphical way after the FOT reading and up to the creation
of a corrected and cleaned photon list (LECS and MECS) or
final spectra and light curves (PDS) . The LECS data reduction can be
accessed also by means of the lecspipe script.
In order to facilitate Interactive Processing, a graphical-user-interface tool
called scs (SAXDAS Command Shell) is also available,
from within all software activities can be controlled in a convenient manner.
Documentation
All necessary information to process LECS and MECS data with the SAXDAS is
contained in the following documents:
Questions, comments or suggestions concerning the SAXDAS software
can be addressed
to
asdc_helpdesk@asi.it
This page is maintained by
Fabrizio Fiore and