CFITSIO - A FITS File Subroutine Library

Quick Start Guide C Reference Guide

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 3.450 version of CFITSIO - see what's new

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:

Latest News
  • May 2018
    CFITSIO Version 3.45 released with bug fixes and enhancements. (see what's new).

  • April 2018
    CFITSIO Version 3.44 released with security fixes along with other bug fixes and enhancements. We highly recommend upgrading to this version.
  • March 2018
    CFITSIO Version 3.43 released with security vulnerability fixes along with other bug fixes and enhancements.
  • September 2017
    CFITSIO Version 3.42 released with some significant bug fixes and enhancements.
  • November 2016
    CFITSIO Version 3.41 released with some significant bug fixes and enhancements.
  • April 2016
    CFITSIO Version 3.39 released with some relatively minor changes.
  • February 2016
    CFITSIO Version 3.38 released. This release contains a critical bug fix.

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.



HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Thursday, 10-May-2018 15:42:27 EDT

The HEASARC welcomes your participation in a brief survey to capture how users access and utilize HEASARC data, software, and services. The outcome(s) of this survey will be used to guide, prioritize, and plan our activities and development in the coming years. It contains 18 questions, generally takes just a few minutes to complete, and your answers will remain totally anonymous. We thank you in advance for your valuable feedback.