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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.1.2] - 2026-02-14

Fixed

  • Fix spacetrack client erroring out when query returns a lot of results
  • Fix spacetrack cdm_public route having wrong parent stem #169

[1.1.1] - 2026-02-14

Added

  • Added ability to configure TrajectoryMode on SGP4Propagator for applications where memory-use management is key. #167

Changed

  • The JOSS paper submission used code examples with the older celestrak API. This PR updates the code examples to use the updated, stabilized API.
  • Slightly adjust language in paper to avoid silly page overflow #165
  • Changed default interpolator used by NumericalOrbitPropgator for event detection from linear to 3rd degree Hermite. #167

Fixed

  • Make .current_epoch() property a method, not property in python bindings.
  • Fixed issue with event detection system in NumericalOrbitPropagator where it not correctly process events co-located with the current time, and would sometimes miss events in between time steps. #167

[1.1.0] - 2026-02-10

Added

  • Added par_propagate_to_d method. #109
  • Add Github issue templates for bugs and feature requests #113
  • Add arXiv citation to README and documentation. #124
  • Modified python bindings to support access computation with numerical orbit propagators. #126
  • Added spacetrack client module, enabling direct interaction with space-track.org APIs #150
  • Added BSL-1.0 to allowed dependency license list
  • Added GCAT dataset interface #152
  • Added simplified CelestrakClient interface to bridge gap between new interface and old one. #157

Changed

  • Bump version for 1.0.1 release #106
  • Renamed par_propagate_to to par_propagate_to_s
  • Move SGPPropagator to D-Type event detection. #109
  • Update documentation to add JOSS paper submission badge. #113
  • Update JOSS workflow to export tex artifacts to support arXiv upload. #122
  • Moved all Brahe errors in python bindings from OSError to BraheError to make them more distinguishable and easy to handle. #126
  • Updated JOSS paper with new required sections. #137
  • Enable manual triggering of latest documentation build in CI for handling EOP-update edge cases for releases. #139
  • Overhauled celestrak client. The celestrak client now uses a common type and query structure shared with the spacetrack module. In particular, the GPRecord serves as the common representation of OMM elements returned by both sites. This enables greater interoperability between other library modules that can consume or act on GPRecord types. The celestrak module is now it's own, stand-alone, module independent of datasets.
  • Migrate developer workflow from make.py to just
  • Remove dependency on BTreeCursor nightly feature, allowing crate to compile with stable rust. #150
  • Adjusted CelestrakQuery python bindings to properly use properties instead of methods for specific dataset queries. Example: New: CelestrakQuery.gp vs Old: CelestrakQuery.gp() #157

Fixed

  • Enabled event detection in par_propagate_to method in Python #109
  • Fixed broken documentation links in readme. (Thank you Stuart Bartlett for pointing it out) #129
  • Fix broken links in main documentation landing page. #131
  • Fix provider names for SSC stations in NASA Near Earth Network #143
  • Fix https://duncaneddy.github.io/brahe/ to redirect to the current default root URL. #147
  • Fixed tables in ephemeris documentation not being justified. #152
  • Reverted pyo3 version update due to incompatibility with numpy depdency
  • Prevented dependabot from auto-updating pyo3 #157
  • Properly pass environment secrets from the release workflow to child-workflows #159

[1.0.1] - 2025-12-04

Added

  • Added from_omm_elements to SGPPropagator. Supports direct initialization of propagator from OMM elements without needing to go through TLE lines. This is both more accurate as well as more robust to TLE ID depletion. #102
  • Add support for event detection to SGPPropagator
  • Add AOIEntryEvent and AOIExitEvent as premade event detectors. #104

Fixed

  • Fix typo in JOSS paper title #99

[1.0.0] - 2025-11-29

Added

  • {D}NumericalOrbitPropagator and python bindings
  • {D}NumericalPropagator and python bindings
  • Event detection system for numerical propagators to find events during propagation #89
  • Mean to osculating, osculating to mean orbital element transformations
  • Update OrbitStateProviders to provide state(s)_koe_mean and state(s)_koe_osc
  • Implement ECI<>ROE direct transformations
  • Add ephemeris_age to SGPPropagator
  • Implement Largrange, cubic Hermite, and quintic Hermite interpolation methods.
  • Add WalkerConstellationGenerator which enables rapidly generating propagators with walker-geometry configurations. #96

Changed

  • Make access computation use D-type propagators.
  • Standardize on
  • Add support for D-type returns to KeplerianPropagator and SGPPropagator
  • Standardized trait traits for {S|D}StateProvider, {S|D}CovarianceProvider, {S|D}StatePropagator
  • DTrajectory and DOrbitTrajectory can now store trajectories of arbitrary length
  • DTrajectory and DOrbitTrajectory can now store stm and sensitivity matricies alongside state and covariance.
  • Improved test coverage across modules
  • Changed how third-body ephemeris sources are defined and loaded. DE source is now a parameter instead of set by function name. Dynamically load BSP files when called.
  • Changed how Gravity models are defined in terms of enumeration types.
  • Renamed state_cartesian_to_osculating and state_osculating_to_cartesian as state_eci_to_koe and state_koe_to_eci #89
  • Improve trajectory module test coverage
  • Improve events module test coverage
  • Changed CI release workflow to publish documentation updates only after packages have been successfully published #96

Fixed

  • Numerical integration step and step_with_varmat now take explicit parameter values. #89

Removed

  • Removed STrajectory6 from python bindings. #89

[0.4.0] - 2025-11-28

Added

  • Add space weather data management and access modeled on Earth orientation data provider design. #73
  • Added support for control inputs to numerical integration
  • Added support for integration of sensitivity matrices to numerical integration functions
  • Added support for analytical and numerical computation of sensitivity matrix
  • Added documentation for integration with control inputs and sensitivity matrix integration
  • Added documentation for computation and handling of sensitivity matrices #78
  • Add JOSS draft paper #80
  • Added NRLMSISE-00 atmospheric density model implementation #82

Changed

  • Consolidates internal implementation of numerical integration
  • Added additional numerical integration tests to improve coverage
  • Consolidates duplicate type definitions across integrator files #78
  • Refactor celestrak.rs and naif.rs modules to use HttpClient structure to enable mocking and mock testing through mockall to make struct calls
  • Refactored main package documentation #84

Fixed

  • Auto-merge of bundled data update wasn't auto-merging #75
  • Removed erroring cache-check in python test workflow #78

[0.3.0] - 2025-11-18

Added

  • Added Integrators submodule with complete rust implementation, python bindings, documentation, and examples
  • Support for RK4, RKF45, DP54, and RKN1210 numerical integration methods
  • License validation and compliance checks. Package is now automatically checked to ensure all dependencies have permissive, commercially-adoptable licenses #63
  • NAIF Development Ephemeride dataset download and caching
  • High-accuracy DE440s-based ephemeris prediction
  • High-accuracy DE440s-based third-body acceleration prediction
  • Python bindings for orbit dynamics functions #68
  • Added geo_sma function to directly return the semi-major axis needed for a geostationary orbit. #69

Changed

  • Moved mathematics capabilities from utils submodule to dedicated math submodule.
  • Bumped version to 0.2.0 for release
  • Removed Rust test sections from coverage reporting #63
  • Orbit dynamics functions which previously required a position-only vector can now accept either a position-only or a state vector. Conversion will be handled by the IntoPosition trait. #68

Fixed

  • Fix inconsistencies in Python API reference header levels
  • Missing Ground station
  • Miscellaneous documentation improvements and fixes #63

[0.2.0] - 2025-11-17

Added

  • Added relative_motion submodule to contain functionality related to relative motion
  • Implemented RTN rotation and state transformations: rotation_eci_to_rtn, rotation_rtn_to_eci, state_eci_to_rtn, and state_rtn_to_eci
  • Implemented Relative Orbital Element (ROE) state transformations state_oe_to_roe and state_roe_to_oe
  • Added util::math functions sqrtm and spd_sqrtm to calculate matrix square root
  • Added util::math functions oe_to_radians and oe_to_degrees to reduce duplication in converting angle values in orbital element calcualtions #57
  • Implement CovarianceProvider trait for OrbitTrajectory. Provides covariance, covariance_eci, covariance_gcrf, and covariance_rtn
  • Add interpolation submodule to store consistent covariance interpolation methods
  • Implement covariance rotation from ECI to RTN frame
  • Extends OrbitTrajectory to optionally store covariance information. #59

Changed

  • Don't run PR tests on release CHANGELOG update. #49
  • Unit test and PR test workflows now cancel in-progress runs if a new commit lands
  • Added concurrency guards to auto-merge workflows. #53
  • Moved where internal vector/matrix (e.g. SMatrix3, SVector6) type aliases are defined from coordinates submodule to utils #57

Fixed

  • Don't trigger multiple changelog merges on changelog a PR. #49
  • Only trigger auto-merge on opened due to changelog PRs not issuing labeled events #51
  • Added additional triggers to auto-merge workflows to ensure they are properly triggered. #53
  • Fixed assorted typos and errors in docstrings related to covariance interpolation features. #61
  • Fixes package-data update CI workflow by moving to auto-PR, auto-merge approach #64

[0.1.3] - 2025-11-12

Added

  • Added python missing bindings for states_icrf and states_gcrf for KeplerianPropagator and SGPPropagator
  • Added additional tests across various module to improve test coverage. #36

Changed

  • Refactor frames.rs file into submodule with subfiles for long-term maintainability. #14
  • Automatically create and merge PRs for changelog updates #16
  • Auto-merge changelog PRs
  • Auto-merge dependabot PRs
  • Expand dependabot to cover python and rust packages #26
  • Bump package version to v0.1.3 #34
  • Skip unit test suite on auto-generated changelog PRs. #44

Fixed

  • PR changelogs were not being incorporated into the package changelog due to main-branch protection #16
  • Stop generation changelog PRs for auto-generated changelog PRs #26
  • Fixed issue with release pipeline release note generation #38
  • Fix auto-merge for changelog PRs by using PAT #40
  • Fix auto-merge workflow to accept PAT owner as actor. #42
  • Fix workflow release step to use workflow PAT and declare base branch #46