The High Energy Astrophysics Science Archive Research Center (HEASARC) is the primary archive for NASA's (and other space agencies') missions studying electromagnetic radiation from extremely energetic cosmic phenomena ranging from black holes to the Big Bang. Since its merger with the Legacy Archive for Microwave Background Data Analysis (LAMBDA) in 2008, the HEASARC archive contains data obtained by high-energy astronomy missions observing in the extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, as well as data from space missions, balloons, and ground-based facilities that have studied the relic cosmic microwave background (CMB) radiation in the sub-mm, mm and cm bands.

The HEASARC is a member of the NASA Astronomical Virtual Observatories (NAVO) where we work with other NASA archives to ensure comprehensive and consistent VO access to NASA mission datasets. Users may now query the HEASARC's catalogs using VO-enabled services and specialized tools. This page describes how to get to the HEASARC VO-enabled services and provides information on other HEASARC VO activities.


Latest News
  • A Rapidly Spinning Black Hole with a Warped Disk (17 Jul 2018)
    NICER provides a detailed look at a rapidly-spinning black hole feeding off its companion star.
  • Swift XRT CALDB Data updated (16 Jul 2018)
    The Swift XRT Caldb has been updated (CALDB update version 20180710).
  • The Generic Caldb updated to version 20180713 (13 Jul 2018)
    The generic caldb was updated to version 20180713. This was an update of the caldb.indx file to include the solar_geophys_data_v1.fits file and older leapsecond files which were missing from the previous version of the caldb.indx (20160713)
  • NICER XTI CALDB Updated to Version 20180711 (12 Jul 2018)
    The NICER XTI caldb has been updated to version 20180711. Please make sure you're using the most recent version of the caldb.config file in order to access the NICER XTI CALDB data, and that your CALDB environment variable is set to https://heasarc.gsfc.nasa.gov/FTP/caldb to remotely access the HEASARC NICER CALDB.
  • Swift CALDB Data updated (09 Jul 2018)
    The Swift SC clock correction has been updated (CALDB update version 20180709).
  • Chandra CALDB 4.7.9 installed at the HEASARC (29 Jun 2018)
    CalDB 4.7.9 is now installed and available at the HEASARC. Chandra 4.7.9 was released by the CXC on June 28, 2018...

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Last modified: Monday, 25-Jun-2018 14:39:17 EDT