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
  • NuSTAR Caldb Update (27 Jul 2020)
    The NuSTAR FPM caldb has been updated to version 20200726. This release includes a new clock correction file, v106, using a more accurate estimate of the NuSTAR clock drift.
  • NICER XTI CALDB Updated (27 Jul 2020)
    The NICER XTI caldb has been updated to version 20200722. This version updates the detector gain, response and effective area of the XTI.
  • Viewing tool updated (24 Jul 2020)
    The Viewing tool also has been enhanced to accept multiple object names and/or coordinates (separated by semicolons) as input.
  • nH tool updated (22 Jul 2020)
    The nH tool has been enhanced to accept multiple object names and/or coordinates (separated by semicolons) as input.
  • SPTSZSPSC- South Pole Telescope Sunyaev-Zel'dovich Survey Point Source Catalog (2020) released (22 Jul 2020)
    The SPTSZSPSC table presents 4845 sources detected by the south Pole Telescope Sunyaev-Zel'dovich Survey, covering 2530 sq. deg and compiling data from 19 fields observed between 2008-2011 in three bands centered at 95, 150, and 220 GHz. These data are available in Browse or Xamin.
  • Chandra CALDB 4.9.2.1 installed at the HEASARC (15 Jul 2020)
    The Chandra CalDB 4.9.2.1 is now installed and available at the HEASARC. Chandra 4.9.2.1 was released by the CXC on July 9, 2020. Note that CALDB 4.9.2.1 is compatible with CIAO 4.12 and later versions only.

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Last modified: Tuesday, 26-May-2020 14:54:42 EDT