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@BryanCazabonne BryanCazabonne released this 08 Nov 21:21
· 656 commits to develop since this release
12.0
4aee10d

Version 12.0 is a major release of Orekit. The main changes are:

  • Introduction of the SSA package which contains probability of collision computation methods (Laas, Alfano, Alfriend, Patera, and Chan)

  • Many features related to GNSS products

    • Refactoring of RINEX files and support of versions 2, 3.05, and 4.0
    • Support of SINEX differential code bias files
    • Writing of GNSS observation files
    • RTCM orbit and clock correction messages for GPS, GLONASS, and Galileo
    • Improvement in SP3 parsing and introduction of SP3 writer
    • Splicing and interpolation of SP3 files
    • Decoding RF-link GNSS messages
    • Custom satellite system allowed in GNSS

  • Huge improvements in spacecraft state interpolation & introduction of covariance interpolation and blending

  • Propagation

    • DSST: addition of the Zeis model for J2-squared mean perturbation contribution
    • Multi-satellite: addition of a step normalizer
    • Custom attitude provider when parsing ephemeris
    • Adaptable max checking interval for event detection
    • Central body flatness now taken into account for eclipse detector and solar radiation pressure
    • Panel dependent coefficients in BoxAndSolarArraySpacecraft

  • Orbit Determination

    • Introduction of date-based parameter drivers for orbit determination
    • Unscented Kalman filter now available for all types of propagators
    • Addition of Gauss Angles-only initial orbit determination
    • Az/El based Initial Orbit Determination

  • Frames & attitude providers

    • Earth Orientation Parameters prediction
    • Building of ITRF frame directly from EOP
    • Torque free attitude provider
    • Interface LOF to allow custom Local Orbital Frames
    • Magnetic-field-aligned Local Orbital Frame
    • Encounter LOF frames for collision prediction

  • New supported file formats

    • Earth Orientation Parameters C04 files
    • Satellite Tool Kit (STK) ephemeris files
    • CCSDS ADM v2 (Attitude Determination Message)
    • Writer for CCSDS OCM files (Orbit Comprehensive Message)

  • Measurements

    • Support for FDOA measurements (Frequency Difference Of Arrival)
    • Modifiers for aberration of light in RADEC (telescope) measurements
    • Full parsing of IRLS CRD files (laser ranging measurements files)
    • Measurements generation and evaluation without derivatives for better performance
    • Station displacements due to plate tectonics
    • Phase center variations for on-board antenna modifiers

  • Maneuvers

    • Refactoring of the package
    • Fielded version of impulse maneuvers
    • Profile based (polynomial segments) thrust propulsion model
    • Introduction of non-euclidean norms to ΔV and mass consumption models

  • Miscellaneous:

    • Static transform for {Field} elements
    • Change of TimeInterpolable by TimeInterpolator
    • Change of PositionAngle by PositionAngleType
    • Field class for StateCovariance
    • Python keywords (e.g. init) are now forbidden for method naming

This version depends on Hipparchus 3.0

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