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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
  • Chandra CALDB 4.12.0 installed at the HEASARC (31 Jan 2025)
    The Chandra CalDB 4.12.0 is now installed in and available from the HEASARC CALDB. Chandra 4.12.0 was released by the CXC on January 31, 2025.
  • XMM-Newton SAS v22.0 Released (31 Jan 2025)
    The latest release of the XMM-Newton Science Analysis Software is now available.
  • NICER Patching Assessment after Spacewalk 91 (24 Jan 2025)
    Verification observations of the installation of 9 patches during U.S. Spacewalk 91 show that the detectors behind the patched optics are receiving lower levels of optical light during orbit night, and the level of light inside the instrument during orbit day is substantially reduced. Some continued data degradation due to sunlight during orbit day is, however, still evident. NICER continues to operate with its full measurement capabilities during orbit night, and assessment of daytime data recovery is ongoing.
  • NuSTAR Caldb Update (22 Jan 2025)
    The NuSTAR FPM caldb was updated to version 20250122. This release includes a new clock correction file, v197. Please see the release notes for more details.
  • Swift SC CALDB updated (22 Jan 2025)
    The Swift SC has been updated to version 20250121 to update the clock correction file to v164.
  • Patching NICER (17 Jan 2025)
    During EVA 91 on January 16, 2025, ISS Astronaut Nick Hague successfully installed 9 patches into 8 of the NICER XTI sunshades to mitigate light leaks from damaged portions of the optical blocking filters. You can watch a recording of the NICER portion of the spacewalk activity from Nick Hague's helmet-camera.

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