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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

  • New Xamin Interfaces
  • Xamin Web InterfaceIntro   
    Our new faster and more powerful access to HEASARC data
    Xamin Batch InterfaceDownload   
    Use Xamin from the command line on your machine
  • Traditional Browse Interfaces   Tips Archive
  • Browse Mission Interface  
    Our traditional full-featured interface
    Browse Keyword Search
    Search-Engine-like query using keywords
    Browse Table Index
    List of all tables in the HEASARC database: if we don't have the one you want, ask us to add it
    Browse Correlation
    Cross-correlation of full tables
    Browse Notification Service
    Get notified when new data is available in the archive
    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
  • KML Browse Interface
    Map Browse sources in Google Sky and other KML services
    Chandra FOV Search
    Search for targets within the active fields of view
    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
  • HTTP or FTP

    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

  • NICER expected launch date: May 14, 2017 (21 March 2017)
    NICER is currently scheduled for launch to the ISS on May 14, 2017 from the Kennedy Space Center.
  • NASA's Swift Mission Maps a Star's 'Death Spiral' into a Black Hole (21 Mar 2017)
    Some 290 Myrs ago, a star much like the sun wandered too close to the central black hole of its galaxy. Intense tides tore the star apart, which produced an eruption of optical, UV and X-ray light that first reached Earth in 2014. Now, a team of scientists using observations from Swift have mapped out how and where these different wavelengths were produced in the event, named ASASSN-14li, as the shattered star's debris circled the black hole: see Pasham et al. (2017, ApJ837, L30) for the full details.
  • 15th INTEGRAL Announcement of Opportunity (21 Mar 2017)
    The ESA Director of Science and Robotic Exploration (Prof. Alvaro Giménez Cañete) has released the 15th Announcement of Opportunity for observing proposals with INTEGRAL. The deadline for proposal submission is March 31, 2017. Additional information can be found on the ESA INTEGRAL website.
  • Chandra Deep Field-South 7-Megasecond X-Ray Source Catalog (16 Mar 2017)
    This catalog of 1,055 X-ray sources detected in the combination of 102 separate observations of the CDF-S field (for a total cleaned exposure time of 6.73 Ms) by Chandra's Advanced CCD Imaging Spectrometer imaging array (ACIS-I) from Luo et al. 2017, ApJS, 228, 2 is now available in Browse and Xamin.
  • SkyView V3.2.3 Beware the Ides of March! (15 Mar 2017)
    Over the next few days (as early as noon 3/15) the SkyView servers will be transitioning to requiring secure HTTP, i.e., HTTPS, URLs to access SkyView services.  This is part of a mandated transition of all NASA (and indeed all … Continue reading
  • Chandra ACIS GSG Point-Like X-Ray Source Catalog (10 Mar 2017)
    This catalog of 217,828 independent X-ray point sources detected in 10,029 observations by Chandra's Advanced CCD Imaging Spectrometer (ACIS) with a total exposure of 221,851 ks (from Wang et al. 2016, ApJS, 224, 40) is now available in Browse and Xamin.
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