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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 NGC 5866 Chandra X-Ray Point Source Catalog (23 May 2018) This catalog listing the properties of 71 X-ray point sources detected in a Chandra ACIS-S observation of the nearby edge-on S0 galaxy NGC 5866 (from Li et al. 2009, ApJ, 706, 696) is now available in Browse and Xamin. NICER XTI CALDB Updated to Version 20180517 (23 May 2018) The NICER XTI caldb has been updated to version 20180517. Please make sure you're using the most recent version of the caldb.config file in order to access the NICER XTI CALDB data. CFITSIO Version 3.45 released (22 May 2018) Version 3.45 of CFITSIO was released May, 2018. Provides new support for reading and writing unsigned long long datatypes; increased the hardcoded NMAXFILES setting for maximum number of open files from 1000 to 10000, other improvements Swift CALDB Data Updated (20 May 2018) The Swift SC clock correction has been updated (CALDB update version 20180411). XMM-Newton Serendipitous Source Catalog (Version 3XMM-DR8) (17 May 2018) The most reccent, updated version of this catalog (from Rosen, Webb, Watson et al. 2016, A&A, 590, A1) containing 775,153 X-ray source detections (an increase of 47,363 compared to DR7) drawn from a total of 10,242 XMM-Newton EPIC observations made between 2000 Feb 3 and 2017 November 30 is now available in Browse and Xamin. Timeline tool updated (15 May 2018) Support for NICER has been added to the Timeline tool. [What is this?]