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Matching CIAO and CALDB VersionsCIAO 4.0 requires CALDB 3.4.0 or higher to operate properly. Are your versions mismatched? Time to update CIAO and CALDB! Source Detection and Cosmic-Ray AfterglowsCIAO users who are trying to detect sources of about 10 counts or less should be aware of potential confusion with cosmic-ray afterglows that have not been removed from the data. The Cosmic-Ray Afterglows why topic explains the limitations of the current tools and describes analysis tips to help eliminate more of the afterglows. 23 Jun 2008 CALDB 3.4.5 has been released for use with CIAO 3.4 and CIAO 4.0. Information on the patch is available from the CALDB 3.4.5 Release Notes and How CALDB 3.4.5 Affects Your Analysis. 4 Jun 2008 The CXC announces the return of the Chandra/CIAO workshops. This is the sixth in a series of workshops started in 2001 aimed at helping users to work with the Chandra Interactive Analysis of Observations (CIAO) software. The 6th Chandra/CIAO Workshop will be held 20-22 October 2008 at the Chandra X-ray Center in Cambridge, MA (USA). Registration is now open! 30 May 2008 Several of the CIAO contributed scripts were updated to replace the Unix "head" and "tail" commands with the CIAO tools "dmkeypar" and "pget". A user reported script failure on Mac OS X 10.4 Intel due to incompatible syntax. 16 Apr 2008 CIAO has been patched to CIAO 4.0.2. The CIAO 4.0.2 patch enables CIAO to run on Mac OS X 10.5 (Leopard) Intel. The patch is optional for 10.4 (Tiger) Intel machines. The patch should not be applied to Linux, Solaris, or Mac PowerPC installations of CIAO. Additionally, there is an updated standalone version of ObsVis for Mac OS X Intel; see the ObsVis website for details and the download. |
Download the CIAO WebsiteUsers doing analysis on laptops, or those with slow internet connections, may find it useful to view the CIAO website from their own system. The website can be downloaded with the GNU wget software. In practice, wget behaves like a smart version of an 'mget' (of the ftp protocol). Users in Europe may find connection speeds are much higher when using the Leicester mirror of the CXC website. The CIAO website is constantly being updated online so that it is of the best use to you. If you choose to download the site to your local system, be sure to check back often for improvements and corrections. Running wgetwget v1.9.1 (at least) is required for the command options used here. Download ALL of the CIAO website (about 510 MB):unix% wget -k -p -m -np -nv -x http://cxc.harvard.edu/ciao4.0/ Download the CIAO website, EXCLUDING .ps, .pdf, and gzipped files (about 60 MB):unix% wget -k -p -m -np -nv -x --reject=pdf,ps,ps.gz,tar.gz http://cxc.harvard.edu/ciao4.0/ The --reject option is used to exclude all files ending in ps or pdf. These are mainly hardcopy versions of the threads and ahelp files and presentations from the CIAO workshops. The data files for the detect threads, which end in tar.gz, are also excluded. Running wget as shown above will create a new directory called "cxc.harvard.edu" with a subdirectory structure: unix% ls cxc.harvard.edu/ ciao4.0/ incl/ Simply run netscape - or your favourite browser - with something analogous to the following argument: unix% netscape cxc.harvard.edu/ciao4.0/index.html & |
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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. |