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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 (Currently unavailable due to updates) 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

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 New and Updated Databases Deleted Databases Data restoration status of all data sets available from the HEASARC Bibliography/archive cross-reference status of HEASARC data sets with ADS-listed publications Science results that used HEASARC data The HEASARC Cookbook - how to find, download, and analyze data Open Archive Policy - find out how you can integrate HEASARC resources into your Web site Documentation for the HEASARC Database System - General description of the database system and a description of the TDAT format used to serialize data and metadata for HEASARC catalogs

Latest News NICER in the News: Mushroom Clouds on Neutron Stars (23 Apr 2018) NICER was featured in an on-line publication by LiveScience on the ability to study photospheric radius expansion bursts, or "mushroom clouds" occurring on neutron stars. CFITSIO Version 3.44 released (19 Apr 2018) Version 3.44 released April, 2018 to enhance security. CFITSIO users are strongly encouraged to upgrade to version 3.44... NuSTAR Cycle 4 Results (19 Apr 2018) The list of NuSTAR targets accepted by the Cycle 4 peer review is now available. Cycle 4 observations will start to be routinely performed on June 1, 2018. Written evaluations will be sent to all NuSTAR Cycle 4 PIs in the next few weeks. TESS, NASA's Planet Hunter Is on Its Way to Orbit (19 Apr 2018) NASA's Transiting Exoplanet Survey Satellite (TESS) launched on the first-of-its-kind mission to find worlds beyond our solar system, including some that could support life. TESS, which is expected to find thousands of new exoplanets orbiting nearby stars, lifted off at 6:51 p.m. EDT Wednesday on a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida. In its 2-year survey mission, TESS will survey the nearest and brightest stars in most (85%) of the sky in its search for exoplanets. NuSTAR CALDB Update (19 Apr 2018) The NuSTAR CALibration DataBase was updated on April 19, 2018 (CALDB version 20180419). This updates the NuSTAR clock correction file to version 80, valid through 2018-04-19. NICER XTI CALDB Updated to Version 20180417 (18 Apr 2018) The NICER XTI caldb has been updated to version 20180417. Please make sure you're using the most recent version of the caldb.config file in order to access the NICER XTI CALDB data. [What is this?]