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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 6.26.1
                                  June 26, 2019
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HEASoft 6.26.1 is a patch-level release that includes updates to NICER
and Swift data analysis software only. (Though it also includes a patch
to rbnrmf applied previously to the 6.26 downloads.)

Please see the download page for information
about patching existing HEASOFT 6.26 installations.

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                                     NICER
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NICERDAS Version 6a:

- nicerl2: (v1.9) Split nicermergeclean around niprefilter2 call to resolve
  "chicken-and-egg" dependency problem; improved handling of conflicts
  between e.g. file and file.gz

- nicermergeclean: (v1.6) Added 'nomerge' option to skip merging of ufa files
  into mpu7 file

- nimpucal: (v1.8) Erase conflicting evt.gz output if clobber=YES

- niprefilter2: (v1.9) Hidden parameters ufpat, ufapat, hkpat, mkfpat now
  use explicit path and can use shortcut

- Improved Perl error handling in most tasks

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                                     SWIFT
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XRT:

- xrtwtcorr: (v0.2.5) Modified 'ftsort' call to fix errors when running
  xrtcalcpi on WT mode data in settling mode