December 6, 2022: SimORBIT is an Enhanced Orbit Propagation Tool that enables the generation of high-fidelity LEO trajectories for single satellites or entire constellations. The initial reference state of the satellite fleet can be defined through an intuitive GUI, or imported from widely adopted formats, such as RINEX (NAV). Its orbital model delivers outstanding performance: the error is ~30 m after 24 hours of propagation (verified against real Precise Orbit Determination data for Sentinel 3A). Additional SimORBIT features include coverage analysis, sky plots from a user-defined reference location on Earth and generation of output files with different formatting options (*.SP3, *.MOT, *.MOTI) compatible with Spirent simulators.
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