https://heasarc.gsfc.nasa.gov/docs/tools.html HEASARC Tools Wed, 24 Jun 2026 18:03:25 -0400 https://heasarc.gsfc.nasa.gov/Images/corp/heasarc.jpg https://heasarc.gsfc.nasa.gov/Tools/ https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Viewing tool's Sun angle constraint for NuSTAR observations has been updated to reflect the mission's new requirements. b020c4c120566b8ab17571cd74d23927 Wed, 24 Jun 2026 18:01:15 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/xTime/xTime.pl A new version of the xTime mission date/time conversion tool has been released that adds support for the IXPE mission and fixes some long-standing issues with converting date/times that correspond to leap seconds and negative MET seconds (for all missions except RXTE and Swift). 84696906b021303aff119d1cd8289073 Mon, 22 Jun 2026 18:42:29 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/fitsverifier/fitsverifier.pl The new version of the FITS File Verifier tool has been reimplemented to be more robust and to use the latest version of the HEASoft fitsverify command line tool. The tool has also been migrated to the HEASARC website. 7cd153e47fd2dfe2be92fcec2894c4c3 Fri, 16 Jan 2026 16:00:44 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Viewing tool's integration with the XMM-Newton Target Visibility Tool has been updated to work with the latest version of the European Space Agency's tool. 52d2d173fd90e59bf2c7889da6bd29fe Mon, 24 Feb 2025 18:14:21 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/xTime/xTime.pl A new version of the xTime mission date/time conversion tool was released that fixes issues with converting from either NuSTAR or INTEGRAL times to XRISM times. f71ab01cd6d74f7dda1b027f43b26504 Thu, 11 Jul 2024 16:15:50 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Sun angle constraint has been updated in the Viewing tool for the IXPE mission. 2a04fd7f0e2a0c6fb00d425e04835fdc Tue, 27 Feb 2024 16:46:19 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next two years. 38872c925d5d1b636867c563ed9e14c2 Mon, 29 Jan 2024 16:57:01 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/xTime/xTime.pl Support for XRISM mission elapsed time has been added to xTime. 8d26291a58af736a47a2be1d9af20c21 Fri, 12 Jan 2024 16:32:37 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/xrism_roll.pl This new tool can determine the range of possible roll angles for a XRISM observation of a target or the time constraints for a roll-constrained XRISM observation of a target. eeaebee2264e6c8402312f6b88dd4073 Mon, 08 Jan 2024 17:30:28 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl Support for James Webb Space Telescope's Sun angle range has been added the Viewing tool. e385da775d3e247cc96d98fe3de3457e Wed, 15 Feb 2023 16:14:52 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next two years. 9c89286445f7598a10eb067ced2f4a48 Mon, 09 Jan 2023 18:56:16 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next two years. f7d211880960481538a3eb9f9b8fc51e Wed, 07 Apr 2021 18:05:32 -0400 https://hera.gsfc.nasa.gov/ Hera and WebSpec will stop working at around 2:00pm EST (19:00 UTC) on Wednesday, January 27th, in order for the HEASARC to update some infrastructure. The downtime could last up to a half hour. 21a6d39d65fae5b20ff0d0ae480b9a25 Mon, 25 Jan 2021 15:28:11 -0500 https://hera.gsfc.nasa.gov/ Hera and WebSpec will stop working at around 2:00pm EST (19:00 UTC) on Wednesday, January 13th, in order for the HEASARC to update some infrastructure. The downtime could last up to an hour. a827c2c0e1213566a798c835ed7e8541 Mon, 11 Jan 2021 16:45:01 -0500 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/high_energy_source/high_energy_source.pl This tool has been enhanced to accept multiple object names and/or coordinates (separated by semicolons) as input. 1339e4206c2f62e23109c44ea0dbedc5 Wed, 09 Sep 2020 19:27:37 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl The Viewing tool also has been enhanced to accept multiple object names and/or coordinates (separated by semicolons) as input. dfd43573eece3db802175338a8eb4867 Fri, 24 Jul 2020 17:29:31 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/w3nh/w3nh.pl The nH tool has been enhanced to accept multiple object names and/or coordinates (separated by semicolons) as input. 159fd9dd2dda801890c323a3ecb6cfb8 Wed, 22 Jul 2020 16:47:52 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/viewing/viewing.pl Support for XMM-Newton has been updated to work with the latest version of the ESA XMM-Newton Target Visibility Checker. 25b4fe51c2f22770d6b9ada59dac7b70 Tue, 26 May 2020 15:22:50 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/timeline/timeline.pl Support for HaloSat has been added to the Timeline tool. 835f905f382c6aebb920995b7114673e Tue, 14 Apr 2020 13:42:02 -0400 https://heasarc.gsfc.nasa.gov/cgi-bin/Tools/xTime/xTime.pl Support for INTEGRAL Julian Dates has been added. Also, xTime will now calculate time intervals (in days/hours/minutes/seconds, fractional days, and total seconds) between successive date/time conversions. 74c02263b7010f2f0cd88661a1b5fb4d Wed, 01 Apr 2020 15:58:25 -0400