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Access to the catalogs and astronomical archives of the HEASARC

Select an interface or start using our keyword search tool below.

HEASARC Data Access

  • Xamin Interfaces
  • Xamin Web InterfaceIntro   
    Our faster and more powerful access to HEASARC data
    Xamin Batch InterfaceDownload   
    Use Xamin from the command line on your machine
  • Browse Interfaces   Tips Archive
  • Browse Mission Interface  
    Our full-featured interface
    Browse Table Index
    Listing of all tables in the HEASARC database
    Browse Correlation of 2 Tables
    Correlation of more than 2 tables is available in Xamin
    Browse Notification Service
    Get notified when new data is available in the archive
    Use Xamin if you wish to monitor any query
    Browse Batch InterfaceDownload  
    Perl scripts (by default these now query Xamin database)

  • CMB Data
  • CMB Missions and Projects
    Data from space-bourne and suborbital CMB experiments in LAMBDA
  • Specialized Forms
  • Argus Proposal/Observation Info
    Search Browse proposal information for observation details and status
    Swift Data Query
    Search bursts and observations of the Swift mission

  • Direct Access to HEASARC Archive Directories
  • Command-Line Downloads
    Describes using our download script as well as wget and curl.

    If there is a published astronomical catalog that you would
    like added to the HEASARC, let us know.

    Browse Quick form divider

    Other Resources

    • SkyView - An easy-to-use tool that returns digital images of the sky in any waveband from radio through to gamma rays
    • VAO DataScope - Query catalogs and services from the HEASARC and from around the world using a single form
    • Literature - Links to literature search engines and online versions of refereed journals and science magazines

    Archive Information

    Latest News

  • NuSTAR Caldb Update (31 May 2023)
    The NuSTAR FPM caldb was updated to version 20230530. This release includes a new clock correction file, v161. Please see the release notes for more details.
  • IXPE on the cover of Nature Astronomy (26 May 2023)
    IXPE made the cover of the May 2023 edition of Nature Astronomy with a polarized view of the Crab. The work by Bucciantini et al. provides insight into the magnetic field morphology and the generation of turbulence in this young supernova remnant system.
  • HEAD Spring 2023 newsletter released (25 May 2023)
    This newsletter is available now for your reading pleasure at your electronic HEAD newsstand !
  • Swift SC CALDB updated (17 May 2023)
    The Swift SC caldb has been updated to version 20230517 ...
  • NuSTAR Caldb Update (16 May 2023)
    The NuSTAR FPM caldb was updated to version 20230516. This release includes a new clock correction file, v160. Please see the release notes for more details.
  • Million Optical/Radio/X-Ray (MORX) Associations Catalog (15 May 2023)
    The Million Optical/Radio/X-Ray (MORX) Associations Catalog is a compendium of optical objects which are calculated as being associated with Chandra, XMM-Newton, Swift, or ROSAT X-ray sources, or with NVSS, FIRST, VLASS, LoTSS, RACS, or SUMSS radio sources or double radio lobes. The latest version (v2, 15 May 2023) of the Million Optical/Radio/X-Ray (MORX) Associations Catalog (Eric Flesch 2016 - 2023) is now available in both Browse and Xamin. This version contains over 3 million (3,101,306 to be exact) optical objects with probable radio/X-ray associations.
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    Last modified: Thursday, 17-Feb-2022 19:35:01 EST

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