CIAO 3.3 and CALDB 3.2.0 Released - 21 November 2005
====================================================
The Chandra X-ray Center (CXC) is pleased to announce that version 3.3
of CIAO ("Chandra Interactive Analysis of Observations") and version
3.2.0 of CALDB are now available for download from:
http://cxc.harvard.edu/ciao/download/
They will also be available from the European mirror site at:
http://ledas-cxc.star.le.ac.uk/ciao/download/
-----------------------------------
The CIAO 3.3 software release includes three new tools useful for
reprojecting files with different coordinate WCS (reproject_aspect,
reproject_image, and reproject_image_grid). It also includes a new tool
for extracting ACIS spectra - specextract - which automatically uses the
most appropriate response tool to create the RMF and replaces most of
the functionality of the psextract and acisspec tools.
CIAO 3.3 includes several improvements and bug fixes, most notably
significant changes to the region library which fix a number of problems
in the calculation of region areas. Additionally, error calculation
changes in dmextract and dmgroup improve the compatibility of the output
files with XSpec.
This release also includes the latest proposal planning tools for
Chandra Cycle 8.
For complete information on this release, please see the full Release
Notes (http://cxc.harvard.edu/ciao/releasenotes/) which also include the
section
"How CIAO 3.3 and CALDB 3.2.0 Affect Your Analysis".
-----------------------------
In tandem with CIAO3.3 is the release of the Chandra Calibration
Database CALDB 3.2.0 which contains the a new ACIS calibration suite
(n0005), new HRC-I gain maps and a new HRC-S calibration file to correct
the non-linearity in the HRC-S/LETG spatial wavelength scale
Detailed information about CALDB 3.2.0 can be found in the Chandra
Calibration Database website at http://cxc.harvard.edu/caldb/
---------------------------------
CIAO3.3 is distributed for the following platforms:
* Solaris 8 (SunOS 5.8)
* Redhat Linux 6.2
* Redhat Linux 8 [runs also on RedHat 9 and other flavors of Linux]
* Mac OS X 10.2.8 (Jaguar) [binaries compatible with Mac OS X 10.3 and
10.4]
More details at http://cxc.harvard.edu/ciao/download/platforms.html
-----------------------------------
As always please send questions and requests for enhancements to the CXC
HELPDESK (http://cxc.harvard.edu/helpdesk/)
CIAO3.3 is a collaborative effort between the SAO/CXC Science Data
Systems, the SAO/CXC Data Systems, and MIT/CXC personnel.
Antonella Fruscione (for the CIAO development team)
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