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To find and download HEASARC data in the cloud, you can use astroquery.heasarc or download our new tool, hark.

The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.


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                           RELEASE NOTES FOR HEASOFT 6.35.1
                                    March 27, 2025
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    The HEASoft 6.35.1 patch release consists solely of an update to
    the 'extractor' task, as noted below.
    
    Please visit the following link to apply this update to an existing
    HEASoft 6.35 installation:
    
      https://heasarc.gsfc.nasa.gov/docs/software/lheasoft/patch.html
    
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                                       HEASARC
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    - extractor: Correction for the errors on the Q and U Stokes
      parameter spectra and light curves.  This correction applies
      only when the extractor parameter "stoke" is set to "simple"
      or "unweighted" and has no effect if the parameter "stoke"
      is set to "neff".