CFITSIO - A FITS File Subroutine Library
CFITSIO is a library of C and Fortran subroutines for reading and writing data files in FITS (Flexible Image Transport System) data format. CFITSIO provides simple high-level routines for reading and writing FITS files that insulate the programmer from the internal complexities of the FITS format. CFITSIO also provides many advanced features for manipulating and filtering the information in FITS files.
Download the latest 4.5.0 version of CFITSIO
Documentation
Help Desk
- Submit questions or bug reports related to CFITSIO to the CFITSIO/CCFITS help desk.
Related Software Tools
Interfaces for calling CFITSIO from Other Programming Languages
Contact the original developer for questions about these interfaces.
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Latest News
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Aug 2024
CFITSIO Version 4.5.0 Conversion of configure/build for automake. Bug fixes and enhancements. (see what's new)
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Jun 2024
CFITSIO Version 4.4.1 License update only, no code changes.
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Feb 2024
CFITSIO Version 4.4.0 released with bug fixes, enhancements and a reorganization to include additional FITS utility programs.
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Nov 2023
CFITSIO Version 4.3.1 minor patch release to make the modify longstring keyword functions fully compatible with the read/write longstring keyword enhancements in v4.3.0.
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Jul 2023
CFITSIO Version 4.3.0 released with bug fixes and enhancements.
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Nov 2022
CFITSIO Version 4.2.0 released with security vulnerability fixes along with other bug fixes and enhancements.
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Mar 2022
CFITSIO Version 4.1.0 released with bug fixes and enhancements.
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Jul 2021
CFITSIO Version 4.0.0 released with bug fixes and enhancements.
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Aug 2020
CFITSIO Version 3.49 released with bug fixes and enhancements.
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Apr 2020 CFITSIO Version 3.48 released with bug fixes and enhancements.
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May 2019
CFITSIO Version 3.47 released with bug fixes and enhancements, including FTPS capability.
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May 2018
CFITSIO Version 3.45 released with bug fixes and enhancements.
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April 2018
CFITSIO Version 3.44 released with security fixes along with other bug fixes and enhancements. We highly recommend upgrading to this version.
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March 2018
CFITSIO Version 3.43 released with security vulnerability fixes along with other bug fixes and enhancements.
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September 2017
CFITSIO Version 3.42 released with some significant bug fixes and enhancements.
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November 2016
CFITSIO Version 3.41 released with some significant bug fixes and enhancements.
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April 2016
CFITSIO Version 3.39 released with some relatively minor changes.
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February 2016
CFITSIO Version 3.38 released. This release contains a critical bug fix.
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The latest reference to CFITSIO is: Pence, W. 1999, in ASP Conf. Ser., Vol. 172, Astronomical Data Analysis Software and Systems VIII, ed. D. Mehringer, R. Plante, and D. Roberts (San Francisco: ASP), 487
CFITSIO was developed by: Dr. William D. Pence,
Any questions or bug reports related to CFITSIO should be submitted to the CFITSIO/CCFITS help desk.