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.

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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


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Latest News
  • Sixth Announced Gravitational Wave Detection, GW 170608 (16 Nov 2017)
    The LIGO Scientific and Virgo collaborations report the detection of yet another gravitational wave signal, dubbed GW 170608, emitted during the final moments of the merger of two black holes with masses of about 7 and 12 times the mass of the sun located at a redshift of ~0.07 (340 Mpc). This is one of the first cases where black holes detected through gravitational waves have masses similar to those detected indirectly via e-m radiation, such as X-rays The discovery paper has just submitted to ApJL.
  • Swift CALDB Data updated (15 Nov 2017)
    The Swift XRT Caldb has been updated (CALDB update version 20171113).
  • SkyView V3.3.2: Links to Mosaicking Inputs (15 Nov 2017)
    Version 3.3.2 of SkyView has been released with two significant changes: updated memory limits, and links to data inputs. The parameters used to set the heap size limits for SkyView web requests have been updated so that users will generally … Continue reading
  • Cassiopeia dwarf galaxy (IC 10) Chandra X-ray Point Source Catalog (07 Nov 2017)
    This catalog of 111 X-ray point sources detected in 10 Chandra ACIS-S observations of this dwarf-irregular galaxy that were designed to capture its variable and transient X-ray source population (from Laycock et al. 2017, ApJ, 836, 50) is now available in Browse and Xamin.
  • Update to the INTEGRAL IBIS AGN Catalog (07 Nov 2017)
    This catalog (from Malizia et al. 2016, MNRAS, 460, 19) of the classification and X-ray properties of 116 active galactic nuclei which have been newly detected and/or identified by the INTEGRAL IBIS instrument since the original INTEGRAL IBIS AGN Catalog of Malizia et al. (2012, MNRAS, 426, 1750) is now available in Browse and Xamin.
  • Swift CALDB Data updated (02 Nov 2017)
    A new Swift clock correction file has been added to the Swift SC Caldb (CALDB update version 20171101).

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Last modified: Sunday, 19-Nov-2017 00:30:06 EST