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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.

HEASoft Versions

This table lists the version numbers of each component inside the HEASoft package.

HEASoft Component Versions
Release Date HEASoft CFITSIO CCFITS Xspec PyXspec NICERDAS NuSTARDAS IXPE XRISM XSTAR WCSLIB NOTES
2019-05-17 6.26.0 12.10.1f 6 2.54
2019-06-26 6.26.1 6a
2020-03-26 6.27.0 3.48 12.11 2.0.3 007 1.9.0 2.54a
2020-04-13 6.27.1 1.9.2
2020-04-23 6.27.2 007a
2020-08-13 6.28.0 3.49 12.11.1 2.0.0
2021-07-19 6.29.0 4.0.0 2.6 12.12.0 008
2021-07-30 6.29a 008a
2021-08-05 6.29b 008b
2021-09-01 6.29c 008c
2022-03-14 6.30.0 4.1.0 12.12.1 2.1.0 2.1.2 2.58e
2022-04-11 6.30.1
2022-11-15 6.31.0 4.2.0 12.13.0 2.1.1 010 2.59
2022-12-16 6.31.1 12.13.0c
2023-07-20 6.32.0 12.13.1 2.1.2 011 2.59b
2023-08-23 6.32.1 011a
2024-02-27 6.33.0 12.14.0 2.1.3 012 2.59ch
2024-03-21 6.33.1 12.14.0b for CLT v15.3 updates
2024-04-22 6.33.2 12.14.0h 012a
2024-08-22 6.34.0 4.5.0 12.14.1 2.1.4 13 2.1.4 1.9 Build 8 2.59d 8.3
2025-03-14 6.35.0 4.6.0 12.15.0 13a 2.1.5 002 2.59e
2025-03-27 6.35.1