Chandra Proposal Planning

These calibration files, updated to the final CY19 release on 15 DEC 2016, are intended for use during the Chandra Cycle 19 Call for Proposals.

ACIS RMFs and ARFs: RMFs and ARFs for specific positions on ACIS-I and ACIS-S. These files were generated from the most recent CALDB available at the start of the current proposal cycle.
Grating RMFs and ARFs: Grating RMFs and ARFs for the HETG/ACIS-S, LETG/ACIS-S, and LETG/HRC-S grating/detector configurations. These files were generated from the most recent CALDB available at the start of the current proposal cycle.
PIMMS Effective Areas: Technical information and plots of the effective areas used to calculate count rates in the PIMMS software.
Chandra Effective Area Viewer: View the current cycle effective areas for the PIMMS-supported configurations, including plots and specific data values versus photon energy, and compare data from different cycles.

Analysis Notes

Matching CIAO and CALDB Versions

CALDB 4.7.4 should not be used unless you are running CIAO 4.5 or later versions.

Are your versions mismatched? Time to upgrade CIAO and CALDB!

News

Previous Items

04 May 2017 [New]

CalDB 4.7.4, an upgrade to CalDB 4.7.3 and later versions, has been released along with CIAO 4.9. Included items are ACIS T_GAIN Epoch 67+68, HRC-I QE version N0010, and HRC-S BADPIX and QEU upgrades for near-plate-gap events. See the CalDB 4.7.4 Release Notes for details.

15 Dec 2016

CalDB 4.7.3, an upgrade to CalDB 4.7.0 and later versions, has been released along with CIAO 4.9. Included items are ACIS T_GAIN Epoch 65+66, ACIS CONTAM version N0010, HRC-I GMAP and PIBGSPEC for September 2016, a header correction for predictive HRC-S QEU 2019, and PIMMS Cycle 19 Effective Areas. See the CalDB 4.7.3 Release Notes for details.

31 May 2016

CalDB 4.7.2, an upgrade to CalDB 4.7.3 and later versions, has been released. Included are two items which affect only ACIS GRADED CC-mode Obs_IDs taken since 2009-11-01: 1) ACIS GRADE file N0005, previously released with CalDB 4.6.4, has been retracted, and 2) the special ACIS QE for CC-modes has been re-indexed so that it will be used for all GRADED CC-mode observations over the full life of the mission. See the CALDB 4.7.2 Release Notes for details.

25 Mar 2016

CalDB 4.7.1, an upgrade to CalDB 4.7.3 and later versions, has been released. Included are the quarterly ACIS T_GAIN upgrades for Epochs 63 (Aug-Oct 2015) and 64 (Nov 2015 - Jan 2016). Provisional and upstaged ACIS T_GAIN files from 2013 and 2014 have been deleted from the distribution and index. See the CALDB 4.7.1 Release Notes for details.