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
HEASARC Software Packages
FITSIO - A subroutine library for reading and writing
files for C and Fortran programmers.
FTOOLS - General
FITS file utility programs and mission-specific data analysis
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
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
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
SkyView-In-A-Jar - Running SkyView
on your own computer.
XANADU - Suite of spectral (xspec), timing (xronos),
and image (ximage)
XSELECT - Multipurpose tool for filtering event files
and generating images, spectra, and light curves. Distributed as
part of the HEASARC package on the
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
NICER XTI CALDB Updated to Version 20180517 (23 May 2018)
The NICER XTI caldb has been updated to version 20180517. Please make sure you're using the most recent version of the caldb.config file in order to access the NICER XTI CALDB data.
CFITSIO Version 3.45 released (22 May 2018)
Version 3.45 of CFITSIO was released May, 2018. Provides new support for reading and writing unsigned long long datatypes; increased the hardcoded NMAXFILES setting for maximum number of open files from 1000 to 10000, other improvements
Swift CALDB Data Updated (20 May 2018)
The Swift SC clock correction has been updated (CALDB update version 20180411).
Fv 5.5 released (09 May 2018)
Updated May 2018; bug fixes, other enhancements.
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