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
  • Swift XRT and SC CALDB updated (14 May 2024)
    The Swift XRT caldb has been updated to version 20240506, and the Swift SC has been updated to version 20240506 ...
  • NuSTAR Caldb Update (06 May 2024)
    The NuSTAR FPM caldb was updated to version 20240506. This release includes a new clock correction file, v182. Please see the release notes for more details.
  • Joint NICER/IXPE Analysis Workshop (01 May 2024)
    The 2024 Joint NICER/IXPE Workshop will be held at The George Washington University in Washington D.C from Monday, 29th of July, 2024 to Thursday, 1st of August, 2024. Registration is free for both in-person and remote attendees
  • CALET CGBM Caldb Update (24 Apr 2024)
    The CALET CGBM caldb was updated to version 20240419.
  • Swift XRT CALDB updated (23 Apr 2024)
    The Swift XRT caldb has been updated to version 20240327 ...
  • HEASoft 6.33.2 released (22 Apr 2024)
    HEASoft 6.33.2 has been released. HEASoft 6.33.2 contains updates required for building the source code with GCC 14.x as distributed with for example, the Fedora 40 operating system. Additionally, it includes fixes for a couple of NICER mission tasks and updates Xspec to patch level 12.14.00h. Please see the 6.33.2 release notes for details.

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Last modified: Wednesday, 08-Sep-2021 18:38:35 EDT