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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
  • Command-line downloads
    Describes using our download script as well as wget and curl.

    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

  • HEASoft 6.29c now available on SciServer (14 Oct 2021)
    HEASoft 6.29c, along with ciao 4.13, XMM SAS v19, and Fermitools 2.0.8 is now available on the SciServer virtual science platform. SciServer provides a powerful data analysis environment with access to the entire HEASARC archive mounted locally, allowing users to analyze HEASARC data without having to install software.
  • NuSTAR Caldb Update (06 Oct 2021)
    The NuSTAR FPM caldb has been updated to version 20211004. This release includes a new clock correction file, v125. Please see the release notes for more details.
  • The NICER Enhanced Visibility Calculator Released (05 Oct 2021)
    The NICER Enhanced Visibility Calculator calculates NICER visibilities for targets over roughly the next 2-week period taking into account ISS orientation and target occultation by ISS structures, and other relevant constraints. These visibility intervals are more accurate than visibilities based solely on Sun and Moon avoidance
  • Fermi LAT Long-Term Transient Source Catalog (29 Sep 2021)
    The First Catalog of Long-Term Transient Sources detected by Fermi Large Area Telescope (LAT) comprises of 142 unique, transient sources that were detected on monthly time intervals during Fermi-LAT operations. The monthly time scale allows to identify transient and variable sources that were not yet reported in other Fermi-LAT catalogs. This catalog is now available in Browse and Xamin.
  • NASA Hubble Fellowship Program (NHFP) Now Accepting Applications (29 Sep 2021)
    The NHFP supports promising postdoctoral scientists performing independent research that contributes to NASA Astrophysics. The research may be theoretical, observational, and/or instrumental. The Announcement of Opportunity, which includes detailed program policies and application instructions, is available at the website. The application submission page will be open from September 2 until November 4, 2021.
  • XSPEC 12.12.0c-e Patch Released (29 Sep 2021)
    Fix to issue with smaug model, minor fixes to the kerrconv and refsch models, several modifications to the XSPEC model.dat model definitions file
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    Last modified: Wednesday, 24-May-2017 12:39:54 EDT

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