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Come analyze HEASARC, IRSA, and MAST data in the cloud! The Fornax Initiative is now welcoming all interested beta users.

Mission-Specific Tools

These Web-based tools provide information specific to a single mission.

  • XRISM Roll Angle – 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
  • HEXTErock – HEXTE cluster background positions on the sky
  • RXTE Weather Map – Sources historically detected by the RXTE All-Sky Monitor
Latest News
  • FITS File Verifier tool updated (16 Jan 2026)
    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.
  • Viewing tool updated (24 Feb 2025)
    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.
  • xTime tool updated (11 Jul 2024)
    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.
  • Viewing tool updated (27 Feb 2024)
    The Sun angle constraint has been updated in the Viewing tool for the IXPE mission.
  • Viewing tool updated (29 Jan 2024)
    The Swift pole constraints have been updated in the Viewing tool. The revised coefficients extrapolate the trend for the next two years.

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