CIAO Version History

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Introduction: Welcome; Tools & Applications
Data Analysis: Analysis Guides; Science Threads; Sherpa Threads; ChaRT Threads; Why Topics; Help Pages (AHELP)
Sherpa (Modeling & Fitting)
S-Lang in CIAO
Documentation: "Watch Out" List; Bug List; Frequently Asked Questions (FAQ); Manuals; Dictionary; Chandra Publications; Software Survey Results
Download CIAO: Download CIAO 3.3; Platform Support; Release Notes; Version History; Analysis Scripts; CIAO Web Pages; Contributed Software
Data Products: Data Basics; Data Products Guide; Data Caveats; Reprocessing III; Pipeline Processing (SDP); Chandra Archive
Workshops
CXC Links: CALDB; ATOMDB; WebGUIDE; ChaRT; Astrostatistics Collaboration; CXO Cross-calibration Page
Site Map

News Previous Items

07 Nov 2006 [New]

CALDB version 3.2.4 has been released. This release contains ACIS time-dependent gain calibration files only. See the How CALDB 3.2.4 Affects Your Analysis section of the CIAO release notes and the CALDB release notes for details.

Download CALDB 3.2.4

31 Jul 2006

New webpage: Effective Area Cross-calibration Results Involving the Chandra X-ray Observatory

This webpage provides a discussion of cross-calibration work relating the Chandra X-ray Observatory to other X-ray missions, particularly XMM-Newton. Much of this webpage was developed in cooperation with the XMM-Newton calibration team.

CIAO Version History

CIAO has undergone significant changes since its initial release. Here we provide a quick look at the history of CIAO's development. Each version is shown with dates and links to relevant release notes. Some of the older CIAO web pages are still available as well:

Although development of the older versions has stopped, we may still be able to answer questions that you have. Please submit them via the CXC Helpdesk.

Version

Date

Release Notes

3.3.0.1

12 January 2006

CIAO 3.3.0.1

3.3

21 November 2005

CIAO 3.3

3.2.2

23 June 2005

CIAO 3.2.2