IXPE Calibration Files

This page contains a summary of the IXPE Calibration files which are currently in the Calibration Database (CALDB). The table links to the latest CALDB tar file and users can download it to install the IXPE CALDB locally.

Instructions for installing the CALDB for IXPE or other missions are available from the CALDB Installation page. The easiest way to access calibration data for IXPE or other HEASARC-supported missions is via remote access, which allows direct access the current HEASARC CALDB without having to install any calibration data locally.

Caldb access for IXPE requires the latest version of the caldb.config file (updated 20220314 or later) which is available at https://heasarc.gsfc.nasa.gov/FTP/caldb/software/tools. Please replace your current $CALDBCONFIG file with this updated version.

Latest IXPE CalibrationVersionRelease Date Tar file
IXPE XRT 20231201 2024-02-28 CALDB tar file
IXPE GPD 20240125 2024-02-28 CALDB tar file

HISTORY of IXPE CALDB releases

Latest News

  • IXPE Caldb Updated (28 Feb 2024)
    The IXPE Caldb has been updated for the XRT (version 20231201) and the GPD (version 20240125). Please see the release notes for details. Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access.
  • IXPE Viewing Tool Updated (28 Feb 2024)
    The Sun angle constraint has been updated in the Viewing tool for the IXPE mission.
  • IXPE Caldb Updated (16 Jun 2023)
    The IXPE Caldb has been updated for the XRT (version 20230526) and the GPD (version 20230526). Please see the 20230526 release notes for details. Downloads are available from the IXPE Calibration page. Users can also access the HEASARC IXPE caldb via remote access.
  • IXPE on the cover of Nature Astronomy (26 May 2023)
    IXPE made the cover of the May 2023 edition of Nature Astronomy with a polarized view of the Crab. The work by Bucciantini et al. provides insight into the magnetic field morphology and the generation of turbulence in this young supernova remnant system.
  • IXPE Caldb Updated (17 Nov 2022)
    The IXPE Caldb has been updated for the XRT (version 20221021) and the GPD (version 20221020). Downloads are available from the IXPE Calibration page. Users can also access the HEASARC caldb remotely.