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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 Proposal/Observation Info 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. Using HTTPS If there is a published astronomical catalog that you would like added to the HEASARC, let us know.

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 Update to the NuSTAR FAQ for bright sources (2 Feb 2023) The NuSTAR FAQ entry "What do I do if I have a bright source?" has been updated to include additional guidance on the usage of the statusexpr keyword in NuSTARDAS. NuSTAR Caldb Update (24 Jan 2023) The NuSTAR FPM caldb has been updated to version 20230124. This release includes a new clock correction file, v152. Please see the release notes for more details. Swift SC CALDB updated (14 Jan 2023) The Swift SC caldb has been updated to version 20230109 ... Viewing tool updated (09 Jan 2023) The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next two years. NuSTAR Caldb Update (29 Dec 2022) The NuSTAR FPM caldb has been updated to version 20221229. This release includes a new clock correction file, v151. Please see the release notes for more details. NICER Cycle 5 Accepted Proposals and Targets Now Available (24 Dec 2022) The NICER mission is pleased to announce that the proposal selection process for Cycle 5 of the Guest Observer program is complete, with observations scheduled to begin no later than March 1, 2023. Documents listing selected proposals and approved targets have been posted to the HEASARC's NICER Proposals Page. [What is this?]