QSAS: Science Analysis Software for Space Plasmas
QSAS current version is 3.0.1
Macintosh users will need to install QT 4.5 (or later, currently QT4.8 is stable and recommended).
QSAS version 3.0.1
Updates at earlier releases are available in the version history.
This is a new branch of QSAS as it begins the move to a new object handling kernel (DVOS). This is faster than the old kernel (QDOS), will be easier to maintain in the community and is simpler to code against for plugin writing. See DvObjectClass.html for documentation.
Apart from speed enhancements it handles all metadata actions and join intrinsically.
migration also involves progressively moving to xml savesets. If you
have an old saveset (.qss folder) that does not open under the latest
release you will need to open it in version QSAS_2_4_12 and re-save
(this will convert binary save files to xml). See QSAS 2_4 below.
QSAS is a software package which provides a flexible, extendable environment for the selection, manipulation, and display of space physics data. QSAS is written in C/C++ and is compiled using the gnu compiler set, and makes use of several elements of third-party software, including Qt (http://qt-project.org/downloads), cdf (http://cdf.gsfc.nasa.gov/) and PLplot (http://plplot.sourceforge.net/).
Currently available for Linux, Mac OSX and
Windows (XP and Vista).
Other specifications can be found within the various items supplied with QSAS.
Please email CSC Support each time you download a qsas distribution, stating which version, so that we can keep users informed of changes and monitor levels of interest. QSAS is provided free under GPL public licence, see licence file.
should download the source distribution that builds itself using a
build script. Edit the script to give the location of the QSAS
distribution after download and the target directory for installing QSAS
into along with QT, and CDF installations on your platform, then type
'./build qsas' in the bin directory of the distribution:
A Linux Binary version is also available for 32bit architectures. This version should not be used if local plugins are to be built. After downloading and moving to its destination, cd to the bin directory inside the distribution and type 'setupQSAS' in order to configure the QSAS script:
Mac OSX users should download the appropriate disk image.
These require QT4.5 or later (currently QT4.8 is stable and recommended) to be installed, and this is available as a universal binary from...
Double click the
QT package and follow the installer instructions.
Launch QSAS on the Mac by double clicking on the QSAS icon /Applications/QSAS_3_0/QSAS
Windows users should download one of the following archives:
After unzipping, a QSAS folder will be created. If you place the QSAS directory in C:\Program Files, it is ready to use.
Otherwise, you must edit the QSAS/bin/QSAS.bat with a
text editor and adapt the path in the first line of the file.
Start QSAS by double-clicking QSAS.bat. You can also make shortcuts to this launcher.
On platforms where it does not run out of the box, it is possible to build from source. In which case it will also be
necessary to install Qt version 4.5 or higher (currently QT4.8 is recommended) together with msys (part
of the MinGW package) and NASA's CDF libraries, available from:
||With a few data records
|NASA Omni High Resolution files with syntax omni_hr_format.txt||omni_hr.qft||omni_hr.qfh|
|Cluster vector and scalar variable examples in tabular (.qft) syntax||CL_SP_FGM_20020328_V01.qft
|Cluster vector and scalar variable examples in Cluster Exchange (.cef )syntax||CL_SP_FGM_20020328_V01.cef
|Cluster vector and scalar variable examples in delimited (.qfd) syntax||CL_SP_FGM_20020328_V01.qfd
|Cassini data in Cluster Exchange (.cef) syntax
|Time Interval as a non-record varying variable (with tabular .qft extension)
|Event List (list of time intervals) in delimited format
|Event List as XML VOTable file
Plug-ins written by the QSAS team are distributed
with the QSAS tar files, and install automatically at QSAS installation.
Many of the ISSI plugins are also distributed with QSAS precompiled.
Other QSAS plug-ins are also available from ISSI and MPE
QSAS is built around the prototyping methodology, and continual improvement and enhancement is central to its development. Some enhancements will come via user-written modules which are incorporated via the QSAS plugin interface. The development team welcomes comments, reports of anomolous behaviour, and suggestions which should be sent to: email@example.com.
When submitting a report, please
try to be as complete and specific as possible. If reporting a bug it can prove
useful if you are able to identify a reproducable sequence of events and a
specific data set. The save and restore session facility in qsas 2 can assist
in providing feedback since save session directories can be tarred and emailed
(save files are platform, independent). The environment variable QSAS_DEBUG can
be set "ON" in the user's QSAS script. This prints progress information
to the terminal. Sending us the last few hundred lines of this output can also
assist in diagnosing problems.
· The binary executables shipped with qsas have the debug symbols stripped from them before distribution. If you wish to run qsas with a debugger, for example when debugging a user written plug-in, then these symbols should not be stripped from a locally built source copy (use "make install" rather than "make install-strip").
The preferred wording for acknowledging use of QSAS in publications is "Data analysis was done with the QSAS science analysis system provided by the United Kingdom Cluster Science Centre (Imperial College London and Queen Mary, University of London) supported by The Science and Technology Facilities Council (STFC)" or similar wording as appropriate.
The Development Table itemises known issues by reference number with a short description of the issue, the module(s) affected, the version this is expected to be fixed by and the initials of the support staff member responsible for progressing it. Items are subdivided into "Bugs", "Features of the user interface" and "Enhancements planned".
This software is maintained by the CSC Team at IC. The team members have included, in alphabetical order, Tony Allen (A.Allen@ic.ac.uk), Stuart Bale, Janet Barnes, Nora Bounaira, David Burgess, Gareth Chisham, Markus Fraenz, Anthony Hare, James Meakin, Alban Rochel, Steve Schwartz (S.Schwartz@ic.ac.uk) and Abdeslam Serroukh. Current team members are shown with an email address. Please address all comments to csc-support-dl.
QSAS is developed as part of the Cluster Science Centre within the UK and funded by the Science and Technology Facilities Council (STFC). The software is provided as is under the GPL public licence, though QM and IC retain the copyright. No liability is accepted for any damage resulting from the installation or use of this software, and no guarantee of its suitability is implied for any use other than the scientific visualisation and manipulation of Cluster science data. Copyright.
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