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07 Nov 2006 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. 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. |
Platform SupportCIAO 3.3 has been made available for the platforms listed below:
Please read the bugs and caveats page for a particular application to see if there are known issues and contact the Helpdesk if you have any problems. Note on Linux PlatformsIn November 2003, the Red Hat Network stated that they will discontinue maintenance on Red Hat Linux 7.x and 8.0 by the end of December 2003, and on Red Hat 9.0 by the end of April 2004. Additionally, they do not plan to release another product in the Red Hat Linux line. Several users have emailed us about the future of CIAO on Linux platforms on account of this announcement. For the current time (e.g. CIAO 3.x), we will continue to produce two versions of the Linux build: linux6 and linux8 (see above for details). We are looking into migrating to a Linux Standard Base (LSB) build for CIAO 4.0, which would allow CIAO to run on nearly every current Linux distribution. While we currently offically support only these versions of Red Hat Linux, in general the linux8 build has worked without issue with most modern Linux platforms. If the user encounters problems then they should try the linux6 build. Explanation of Platform SupportThe CXC's commitment to support a platform - i.e. a version of an operating system - means that we undertake to fix bugs on that system. This requires that we are able to compile CIAO from source on each platform, which is a much greater committment than simply providing a compatible binary. Additionally, it is typically necessary to support three versions of each operating system: former, current and new. Currently Supported
Binary Compatible Only
When we support a system:
As a result, we are not able to support a larger number of systems than we currently do. We gather information from users on what platforms they are running (or want to use) in order to prevent the overextension of our resources to little-used platforms. |
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The Chandra X-Ray
Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxcweb@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2004. All rights reserved. |