The Chandra X-ray Center (CXC) is pleased to announce that version
4.0 Beta 1 of CIAO ("Chandra Interactive Analysis of Observations") and
version 3.4.0 of CALDB are now available for download from:
http://cxc.harvard.edu/ciaobeta/download/
[Note the new URL for the Beta software website.]
CALDB 3.4.0 may be used with both CIAO 3.4 and CIAO 4.0 Beta 1.
-----------------------------------
CIAO 4.0 Beta 1 is a tools-only release. New versions of ChIPS and
Sherpa will be released in CIAO 4.0 Beta 2 (Summer 2007) and Beta 3
(Fall 2007). CIAO 4.0 is planned for Winter 2007.
CIAO 3.4 is still available for download and supported as the stable
CIAO release.
The "About CIAO 4.0 Beta 1" page has more information:
http://cxc.harvard.edu/ciaobeta/beta.html
-----------------------------------
The most notable tool change in CIAO 4.0 Beta 1 is that the ACIS
dead area correction is turned on by default. There is a new version of
tgextract - named tgextract2 - which provides similar functionality, but
allows large and asymmetric regions for better determination of
background counts. Significant work has been done on the tool wavdetect,
which has two new parameters. The sso_freeze tool has been enhanced so
that it can create object-centered aspect solution which, among other
uses, allows an object-centered exposure map to be generated.
Read the complete release notes, including the section "How CIAO 4.0
Beta 1 and CALDB 3.4.0 Affect Your Analysis":
http://cxc.harvard.edu/ciaobeta/releasenotes/ciao_4.0beta1_release.html
-----------------------------
In tandem with CIAO 4.0 Beta 1 is the release of the Chandra Calibration
Database version 3.4.0. This release includes ACIS time-dependent
gain files, improved ACIS Blank-Sky background files, HRC-I gain maps,
a new HRC-S QE file, and the dispersion region file used by tgextract2.
CALDB 3.4.0 may be used with both CIAO 3.4 and CIAO 4.0 Beta 1.
Detailed information about CALDB 3.4.0 can be found in the Chandra
Calibration Database website at http://cxc.harvard.edu/caldb/
---------------------------------
CIAO 4.0 Beta 1 is the first release of CIAO to be fully GPL
compliant. OTS (off-the-shelf) software have been updated to current
versions. A new test script ("smoke test") is included to aid users
in verifying installation of the release.
CIAO 4.0 Beta 1 is distributed for the following platforms:
* Solaris 8
* Linux Redhat 8.0
* Fedora Core 4
* Mac OS X PowerPC 10.4
* Mac OS X Intel 10.4 (native build, not under Rosetta)
This release will not work on older versions of Mac OS X.
More details at http://cxc.harvard.edu/ciaobeta/download/platforms.html
-----------------------------------
As always please send questions and requests for enhancements to the CXC
HELPDESK (http://cxc.harvard.edu/helpdesk/).
CIAO 4.0 Beta 1 is a collaborative effort between the SAO/CXC Science Data
Systems, the SAO/CXC Data Systems, and MIT/CXC personnel.
Elizabeth Galle (for the CIAO development team)
This archive was generated by hypermail 2b29 : Thu Dec 13 2012 - 01:00:09 EST