# SatelliteToolbox.jl v0.5.0 has been tagged

**URL:** <https://discourse.julialang.org/t/satellitetoolbox-jl-v0-5-0-has-been-tagged/19039>\
**Category:** Astro/Space\
**Created:** [December 27, 2018, 5:08pm UTC](https://discourse.julialang.org/t/satellitetoolbox-jl-v0-5-0-has-been-tagged/19039 "2018-12-27T17:08:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ronis\_BR](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ronis_br/32/50999_2.png) [@Ronis\_BR](https://discourse.julialang.org/u/Ronis_BR)\
**Post date:** [December 27, 2018, 5:08pm UTC](https://discourse.julialang.org/t/satellitetoolbox-jl-v0-5-0-has-been-tagged/19039/1 "2018-12-27T17:08:30Z")

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Hi guys!

I have just tagged the v0.5.0 of SatelliteToolbox.jl. This is a huge release (I think the biggest one of this package) that contains almost 2 months of work. Here is a summary of the changes (for a complete list, see the [CHANGELOG.md](https://github.com/JuliaSpace/SatelliteToolbox.jl/blob/master/CHANGELOG.md)):

- We now have a [package documentation](https://juliaspace.github.io/SatelliteToolbox.jl/dev) 🎊🎉 It is not complete yet and needs corrections, I did not have much time to review.
- **Huge** performance increase in some functions:
  - `legendre (conv)`: 40.6% faster.
  - `dlegendre (conv)`: 42.6% faster.
  - `rECEFtoECI (ITRF -> GCRF)`: 99.5% faster.
  - `rECItoECEF (GCRF -> ITRF)`: 99.5% faster.
  - `rECEFtoECEF (ITRF -> PEF)`: 99.8% faster.
  - `rECItoECI (MOD -> GCRF)`: 99.8% faster.
  - `GeodetictoECEF`: 71.6% faster.
  - `Two body orbit propagator`: 99.8% faster.
  - `J2 orbit propagator`: 99.8% faster.
  - `SGP4 orbit propagator`: 8.2% faster.
  - `compute_g (full EGM96)`: 18.3% faster.
  - `nrlmsise00`: 76.3% faster.
  - `igrf12 (geocentric)`: 11.2% faster.
  - `igrf12 (geodetic)`: 98.6% faster.
  - `sun_position_i`: 20.2% faster.
  - `angvel`: 59.3% faster.
  - `compute_ss_orbit_by_ang_vel`: 90.8% faster.
  - `list_ss_orbits_by_rep_period`: 79.4% faster.

- Three new atmospheric models: Jacchia-Roberts 1971, Jacchia-Bowman 2008, and the exponential atmospheric model.
- A new system to automatically fetch the space indices. Hence, you can now call, for example, the NRLMSISE-00 atmospheric model and the required indices (F10.7 and Ap) are automatically obtained.
- An algorithm to compute the Sun velocity vector w.r.t. an Earth-centered system is now available.