XSPEC
XSPEC is an X-ray spectral fitting package. The XSPEC User's Guide can be found at
http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/index.html
At the same place you will find a link to the ``download and install'' instructions page.
FTOOLS
FTOOLS is a collection of utility programs used to create, examine, or modify the contents of FITS data files. The FTOOLS User's Guide can be found at
http://heasarc.gsfc.nasa.gov/ftools/
The package itself can be also downloaded from this page.
FV
Among different components of FTOOLS we want to draw your attention to the program FV. FV is a software tool for viewing and editing any FITS format image or table. You can learn more about it and download at
http://heasarc.gsfc.nasa.gov/docs/software/ftools/fv/
DS9
DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps.
You can download it and find more information at
http://hea-www.harvard.edu/RD/ds9/
ISDCroot
ISDCroot is the CERN ROOT system (http://root.cern.ch) with ISDC additions. The first addition is that all of the ISDC support libraries are available in ROOT so that scripts which use DAL or DAL3 library calls can be written. The second addition is that INTEGRAL analysis executables and/or any FTOOLS-like executable can be easily run from within ISDCroot. The final addition is IC access routines which allow easy access to the IC tree. With the above combinations, it is easy to write scripts to read data from ISDC data repositories into ROOT analysis classes. Once this is done, one can easily display and manipulate data for analysis.