The HEASARC Calibration Database

Caldb manager: Dr. M. F. Corcoran

The HEASARC's calibration database (CALDB) system stores and indexes datasets associated with the calibration of high energy astronomical instrumentation. The system can be accessed by users and software alike to determine which calibration datasets are available, and which should be used for data reduction and analysis. (Read more...)

User Information

CALDB Location:

Supported Missions: Missions and Instruments which use the HEASARC CALDB

    Find out who's using the CALDB

Download and Installation Instructions

    Get your own copy of the CALDB for any supported mission

Remote Access to the HEASARC CALDB

    The easiest way to access calibration data from the HEASARC

CALDB Documentation Library

    CALDB file format definitions, user guides and more. For quick reference, a table listing the CALDB Header Keywords, with brief definitions, is available.

Cross-Calibration Information

    This page contains documents regarding efforts at cross-calibration of X-ray and Gamma-ray instruments.

CALDB Software

    Find out what HEASOFT software interacts with the CALDB.

Installing, Managing or Creating your own CALDB

    Download the HEASARC CALDB and update it, or make your own CALDB

CALDB Personnel

    Who's who at the CALDB (and who was who)

Need Help?

CALDB Mirror

The International Astronomical Consortium for High Energy Calibration

    The IACHEC aims to provide standards for high energy calibration and supervise cross calibration between different missions
Latest News

  • NuSTAR CALDB Update (25 Aug 2014)
    The NuSTAR CALibration DataBase was updated on July 25, 2014 (CALDB version 20140814). This updates the NuSTAR clock correction file to version 38, valid up to 2014-04-14.
  • Swift CALDB Data updated (30 Jul 2014)
    The Swift Caldb has been updated for the SC (update version 20140718) and the XRT (update version 20140709)...
  • NuSTAR CALDB Update (25 Jul 2014)
    The NuSTAR CALibration DataBase was updated on July 25, 2014 (CALDB version 20140715). This updates the NuSTAR clock correction file to version 37, valid up to 2014-07-15.
  • Chandra CALDB 4.6.2 installed at the HEASARC (14 Jul 2014)
    CalDB 4.6.2 is now installed and available at the HEASARC. Chandra 4.6.2 was released on July 9, 2014. This release corrects an error in the HRC branch index file which causes the 2012 and 2013 HRC-I BKGRND files to be selected in reversed order, which affects HRC-I-related tools such as hrc_bkgrnd_lookup and fluximage. Note that this release requires CIAO 4.3 or higher...
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    +Caldb News Archive

    +Caldb Mail Archives

    Page author: Michael F. Corcoran
    Last updated: Tuesday, 20-May-2014 15:10:44 EDT.

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    Last modified: Tuesday, 20-May-2014 15:10:44 EDT