To Chandra Users:
CalDB 3.2.4 is now available for download at
[To CXC/HEAD users: CalDB 3.2.4 will soon (today) be available on the
HEAD LAN, and will be automatically accessible from CIAO 18.104.22.168.]
The Chandra X-Ray Center has introduced version 3.2.4 of the Chandra
Calibration Database (CALDB) as of 07 November 2006 to the public. The
upgrade will be installed in Standard Data Processing as soon as
reasonably possible. See the CalDB Release Notes page under the "SDP
Date" column for the precise date and time when it has been determined.
CALDB 3.2.4 is a patch upgrade to CalDB 3.2.3. It includes six new ACIS
T_GAIN files used in acis_process_events. The new files address two
issues: (1) to account for the gain versus time discontinuity in chips
I0 and I2 which occurred around 01 August 2005, and (2) to add two more
T_GAIN epochs to the suite, namely 25 (Nov 2005 - Jan 2006) and 26 (Feb
2006 - Apr 2006).
See the CALDB 3.2.4 release notes for a detailed explanation of the
See also the web page "How CALDB 3.2.4 Affects Your Analysis"
(http://asc.harvard.edu/ciao/releasenotes/ciao_22.214.171.124_release.html#HowCALDB3.2.4AffectsYourAnalysis) to get an idea how your specific data would be affected, and whether or not the change is meaningful to your analysis.
These web pages will soon be available on our mirror site at
- Dale Graessle
Chandra CalDB Manager
This archive was generated by hypermail 2b29 : Thu Dec 19 2013 - 01:00:09 EST