HEASARC Software

The following software is supported by the HEASARC. Most of this software is designed for professional researchers and advanced students for the analysis of scientific astronomical observations in FITS format. The 'fv' program is also suitable for more general use by amateurs and educators for viewing astronomical image files. These software packages are to be downloaded to the users machine. Web-based tools are available on our tools page.

HEASARC Software Packages

  • FITSIO - A subroutine library for reading and writing FITS files for C and Fortran programmers.
  • FTOOLS - General FITS file utility programs and mission-specific data analysis tools.
  • FV - Interactive editor and viewer for astronomical data files in FITS format. Also provides access to Hera.
  • HEAsoft - A unified release of the FTOOLS and XANADU packages.
  • Hera - Run the FTOOLS and XANADU software on the Hera servers at the HEASARC, without having to install the software packages locally.
  • Maki - Displays fields of view for various instruments on FITS images. Currently supports the Suzaku XIS & HXD, Chandra ACIS & HRC, XMM EPIC, and RXTE PCA detectors.
  • PIMMS - Program to estimate count rates from fluxes or vice versa, or to estimate count rates in one instrument from those measured in another.
  • Profit - GUI tool for visualizing and modeling high-resolution spectra.
  • SAOImage DS9 - Astronomical Imaging and Data Visualization Application: DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps.
  • SkyView-In-A-Jar - Running SkyView on your own computer.
  • XANADU - Suite of spectral (xspec), timing (xronos), and image (ximage) analysis programs.
  • XSELECT - Multipurpose tool for filtering event files and generating images, spectra, and light curves. Distributed as part of the HEASARC package on the download page.
  • XSTAR - Program for calculating physical conditions and emission spectra in photoionized gases.

    ASTRO-Update - Latest Versions of Useful Multi-mission Software

    FITS - Data Formats, Standards and HEASARC Conventions for High-Energy Astrophysics Data

    LAMBDA Toolbox - Useful Software and Web Tools for Cosmic Microwave Backround and General Astronomy

  • Mission-Specific Software

    ASCA | BeppoSAX | CGRO | Chandra | EUVE | EXOSAT | Fermi | HEAO-1 | INTEGRAL | NuSTAR | OSO-8 | ROSAT | RXTE | Suzaku | Swift | XMM-Newton

    Latest News

  • Accessing CALDB data through the CALDB Mirror (21 Dec 2018)
    In case the HEASARC CALDB is unavailable, users can still access CALDB data from the CALDB mirror site hosted at the CfA. The mirror CALDB is available at ftp://cda.cfa.harvard.edu/pub/arcftp/heasarc/caldb/. Remote access users should set their CALDB environment variable to % setenv CALDB ftp://cda.cfa.harvard.edu/pub/arcftp/heasarc/caldb/ (for c-shell users) and make sure your local CALDBCONFIG and CALDBALIAS files are up to date.
  • Chandra CALDB 4.8.2 installed at the HEASARC (14 Dec 2018)
    The Chandra CalDB 4.8.2 is now installed and available at the HEASARC. Chandra 4.8.2 was released by the CXC on December 13, 2018...
  • Swift CALDB Data updated (17 Nov 2018)
    The Swift SC clock correction has been updated (CALDB update version 20181114).
  • Fermi LAT CALDB update (08 Nov 2018)
    The Fermi LAT CALDB has been updated (update version 1.0.0). This is the first version of the LAT caldb which is released through github and available via the Fermi Science tools using the new conda installation. See the FermiTools wiki for details.
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    Last modified: Thursday, 13-Jul-2017 13:38:02 EDT

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