Hello, Chandra Users,
An upgrade to the Chandra CalDB, Version 3.4.5, is now available
for download from the web page
http://cxc.harvard.edu/caldb/downloads/index.html
with release notes available at the following location:
http://cxc.harvard.edu/caldb/downloads/Release_notes/CALDB_v3.4.5.html
CIAO 3.4/4.0 release notes have been updated as well:
http://cxc.harvard.edu/ciao/releasenotes/ciao_4.0_release.html#HowCALDB3.4.5AffectsYourAnalysis
http://cxc.harvard.edu/ciao3.4/releasenotes/ciao_3.4_release.html#HowCALDB3.4.5AffectsYourAnalysis
CalDB 3.4.5 is compatible with and recommended for both
CIAO 4.0+ and CIAO 3.4.
CalDB 3.4.5 includes the new ACIS T_GAIN corrections for Epoch 33
(February through April 2008.) As such the upgrade affects ACIS
taken after 01 November 2007, with small (0-2%) changes in the PHA, PI,
and ENERGY values in ACIS L1 events files. Earlier observations are
not affected by this upgrade.
The above information will be posted soon on the Chandra mirrored web
site at Leicester, namely
http://chandra.ledas.ac.uk/ciao/
Cheers,
- Dale Graessle
Chandra CalDB Manager
This archive was generated by hypermail 2b29 : Wed May 15 2013 - 01:00:12 EDT