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Last modified: 10 October 2007

URL: http://cxc.harvard.edu/ciao3.4/bugs/dmfilth.html
Hardcopy (PDF): A4 | Letter

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Matching CIAO and CALDB Versions

CIAO 3.4 requires CALDB 3.3.0 or higher to operate properly.

CALDB 3.4.0 and higher should not be used unless you are running CIAO 3.4 or CIAO 4.0.

Are your versions mismatched? Time to update CIAO and CALDB!

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11 Nov 2008

These are the webpages relative to the CIAO 3.4 release (18 December 2006). They are no longer actively updated, however the CXC will continue limited support of CIAO 3.4 for the near future.

CIAO 3.4 users should check the CALDB 3 website for compatible calibration updates.

15 Dec 2008

The newest version of the Chandra Interactive Analysis of Observations software, is CIAO 4.1, released on 15 December 2008. Read the release notes for detailed information. This release requires that CALDB 4.1.0 be installed for the software to work correctly.

Bugs: dmfilth

Return to: Bug List Index

Bugs

  1. When using POISSON method, the distribution varies from true Poisson distribution slightly.

  2. BILINT method fails if no background regions are supplied (01 Dec 2006)

Bugs

  1. When using POISSON method, the distribution varies from true Poisson distribution slightly.

    This is only detectable with many (hundreds) of runs.

  2. BILINT method fails if no background regions are supplied (01 Dec 2006)

    Although the help file correctly states that bkglist parameter is not used in this method, the tool fails if it is left blank. 

    unix% dmfilth img_s3.fits output.fits BILINT srclist=@src.lis bkglist=""
dmfilth (CIAO 3.4): Unable to parse bkglist.
: Error 0
# 16968: dmfilth (1) is: exit_upon_error->NULL

    Workaround:

    Set any region file in the bkglist parameter. The contents of the file will be ignored and the BILINT method will work as is intended.

Hardcopy (PDF): A4 | Letter
Last modified: 10 October 2007

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