2024-06-24  Orekit 12.1 released

The Orekit team is pleased to announce the release of Orekit version 12.1. Version 12.1 is a minor release of Orekit, including new features and bug fixes.

The main changes are:

• Major performance improvements in several Orekit features:

  • orbit propagation
  • orbit estimation
  • frame transformations
  • etc.

• Implementation of specific AdaptableInterval for:

  • elevation detector
  • apside detector

• GNSS:

  • Support for post-seismic deformation available in Sinex files
  • Splicing of Rinex clock files
  • Support for different GNSS clock modelling
  • New architecture for tropospheric models as well as new models (i.e., Askne-Nordius model, Hopfield model, and Chao mapping functions)

• New event detector for:

  • beta angle
  • relative distance between two objects

• Propagation:

  • support for Intelsat’s 11 elements propagation
  • a new solar radiation pressure model with cylindrical shadow model

• Miscellaneous:

  • support for Walker constellations
  • support for Ant has been removed
  • Several bug fixes

This version depends on Hipparchus 3.1

For complete release notes please see: https://www.orekit.org/site-orekit-12.1/changes-report.html

The maven artifacts are available in maven central. The source and binaries can be retrieved from the forge releases page: https://gitlab.orekit.org/orekit/orekit/-/releases

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