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.

Picture of the Week

This Week's High-Energy Picture
APOD: Astronomy Picture
of the Day

Today's APOD Image

More Images

Xamin Quick Search Xamin     Browse


Enter positions, times, missions, etc to query the HEASARC database.

Try ROSAT 3c273 1d to get ROSAT data within one degree of 3C273 or chanmaster bii>80 status='archived' to get archived Chandra observation data near the north galactic pole.

Note: For more than one target or when using any qualifier other than a mission, use quotes around targets that have embedded white space.(e.g., 'ar lac').

More information and examples


View all tips

Latest News
  • NuSTAR CALDB Update (23 Jan 2017)
    The NuSTAR CALibration DataBase was updated on January 23, 2017 (CALDB version 20170120). This updates the NuSTAR clock correction file to version 68, valid through 2017-01-20.
  • HEASoft 6.20 Released (19 Jan 2017)
    Released January 19, 2017. This release is primarily driven by updates to XSPEC, NuSTARDAS, XRTDAS, and the Hitomi software, but also includes updates to other packages which have been revised to mirror the current development versions in use at the HEASARC....
  • XSPEC 12.9.1 Released (19 Jan 2017)
    Released January 19, 2017, with the release of HEASoft 6.20. Many models updated, speed increases, other enhancements.
  • XMM-Newton SAS v16.0.0 Released (17 Jan 2017)
    The latest release of the XMM-Newton Science Analysis Software.
  • Sloan Digital Sky Survey (SDSS) Stripe 82 XMM-Newton Source Match Catalog (13 Jan 2017)
    A catalog of 5,220 XMM-Newton X-ray sources and their multi-wavelength (e.g., SDSS, FIRST, GALEX, Herschel, etc.) counterparts that were detected in the SDSS Stripe 82 Legacy field (from LaMassa et al. 2016, ApJ, 817, 172) is now available in Browse and Xamin.
  • Hitomi CALDB Data Updated (13 Jan 2017)
    The Hitomi CALDB released to the HEASARC on December 22, 2016 was incomplete. The complete Hitomi CALDB has been re-released. This release includes data for the HXI (version 20161122), General Mission (Gen) data (version 20161122), the SXI (version 20161122) and the SXS (version 20161122)

RSS [What is this?]

Upcoming Dates & Deadlines
Upcoming Astronomy Meetings

HEASARC Home | Observatories | Archive | Calibration | Software | Tools | Students/Teachers/Public

Last modified: Monday, 23-Jan-2017 00:30:04 EST