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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

  • NASA's NICER Delivers Best-ever Pulsar Measurements, 1st Surface Map (12 Dec 2019)
    Astrophysicists have redrawn the textbook image of pulsars thanks to new detailed monitoring by NICER of the X-ray pulsar J0030+0451. NICER's detailed measurement of the X-ray pulse shape allowed the distribution of X-ray hot spots over the surface of the pulsar to be mapped out, and determined precise values for the size and mass of the pulsar. A series of papers analyzing NICER's observations of J0030 appears in a focus issue of The Astrophysical Journal Letters.
  • Updated Million Quasars Catalog (v6.4) (11 Dec 2019)
    The latest version (v6.4, 11 Dec 2019) of the Million Quasars (MILLIQUAS) Catalog (Eric Flesch 2009 - 2019) containing a lot more than one million (1,968,377 to be exact) likely quasars is now available in both Browse and Xamin.
  • SkyView v3.5.1: CopyWCS and SIA fixes (09 Dec 2019)
    We have just released SkyView v3.5.1 which has a couple of fixes that shouldn’t affect most people. A bug in the handling of the CopyWCS keyword has been fixed. CopyWCS is a keyword which allows a SkyView-in-a-Jar user to specify ... Continue reading ...
  • XMM-Newton AO-19 Results Released (3 Dec 2019)
    The list of XMM-Newton observing proposals accepted by the AO-19 Observing Time Allocation Committee is now available.
  • An X-ray Flare from eta Carinae as seen by NICER (03 Dec 2019)
    NICER monitoring of the massive colliding wind binary eta Carinae as the stars approach periastron passage has detected a sudden X-ray brightening. This X-ray flare is similar to the X-ray flaring seen at a similar orbital phase in previous binary orbital cycles. X-ray flaring should continue until the star reaches it X-ray maximum before the decline to the X-ray minimum on 2020 February 13.
  • Viewing tool updated (02 Dec 2019)
    Support for the upcoming IXPE mission has been added to Viewing.
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