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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 Observation Monitor
    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
  • If there is a table you'd 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 Cycle 6 Proposal Deadline is Near, Proposals MUST be Anonymized (17 Jan 2020)
    Phase-1 science proposals are due by 4:30 p.m. EST, January 24, 2020. Please see the Guide for Proposers and the Guidelines for Anonymous Proposals for more details.
  • Swift CALDB Data updated (08 Jan 2020)
    The Swift SC clock correction file has been updated (CALDB update version 20200106).
  • NuSTAR CALDB Update (19 Dec 2019)
    The NuSTAR CALibration DataBase was updated on December 19, 2019 (CALDB version 20191219). This is a patch release for update 20191213.
  • Chandra Source Catalog v2 (CSC) Released (19 Dec 2019)
    The Chandra Source Catalog (CSC) is the definitive catalog of X-ray sources detected by the Chandra X-ray Observatory. By combining Chandra's sub-arcsecond on-axis spatial resolution and low instrumental background with consistent data processing, the CSC delivers a wide variety of uniformly calibrated properties and science ready data products for detected sources over four decades of flux. The second major release of the catalog, CSC 2.0, includes measured properties for 317,167 unique compact and extended X-ray sources in the sky, allowing statistical analysis of large samples, as well as individual source studies in the "Master Sources" table, available in Browse and Xamin.
  • HEAD Fall 2019 newsletter released (19 Dec 2019)
    This newsletter is available now for your reading pleasure at your electronic HEAD newsstand !
  • ARK/RPS Downtime Scheduled for 2019-12-18 Completed (18 Dec 2019)
    The scheduled maintenance for the ARK database has completed, and ARK/RPS is fully operational. If you encounter any issues, please contact the ARK Help Desk.
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