Download CALDB 4.5.6

Latest Update: 28 February 2013

CALDB 4.4.1 or higher is required for the proper operation of CIAO 4.5. The substitute CTI files introduced in CALDB 4.5.6 are incompatible with CIAO 4.4.1 or earlier.

The CALDB contains all the calibration files required for Chandra data analysis. The CALDB can be downloaded, installed, and upgraded with the ciao-install script.

For more information on the CALDB, visit the CALDB website. Details on this release in particular are available from the CALDB 4.5.6 Release Notes.

CALDB 4.5.6 Full

This is the latest full installation of the CALDB. If you already have CalDB 4.5.5 or higher installed, it is only necessary to download the upgrade package.

Contents	File	Size
Full Release	caldb_4.5.6_main.tar.gz	2.41 GB; 5.28 GB unzipped
ACIS background event files	acis_bkgrnd_4.5.6.tar.gz	921 MB; 2.11 GB unzipped
HRC background event files	hrc_bkgrnd_4.3.0.tar.gz	1.41 GB; 2.2 GB unzipped
ACIS PSF Library	acis_psflib_4.1.0.tar	166 MB
HRC PSF Library	hrc_psflib_4.1.0.tar	178 MB
README file	README_caldb4.5.6.txt
Manifest file	MANIFEST_4.5.6_main.txt	85 KB

CALDB 4.5.6 Upgrade

This is a cumulative upgrade, updating CALDB versions from 4.5.5 or 4.5.5.1 to 4.5.6. If you do not already have at least CALDB 4.5.5 installed, you should download the full installation.

Contents	File	Size
Upgrade Release	caldb_4.5.6_upgrade.tar.gz	268 MB; 663 MB unzipped
ACIS background event files	acis_bkgrnd_4.5.6.tar.gz	921 MB; 2.11 GB unzipped
Readme file	README_caldb4.5.6_upgrade.txt
Manifest file	MANIFEST_4.5.6_upgrade.txt	1.8 KB