Skip to main content Crate arika Copy item path Source body earth Earth: physical constants, reference ellipsoid, geodetic coordinates,
Earth rotation models, and Earth Orientation Parameters. eclipse Eclipse / shadow geometry. epoch Time representation with scale-tagged Epoch<S>. frame Coordinate frame markers and frame-tagged types: Vec3<F> and Rotation<From, To>. horizons JPL Horizons vector-table parser and (optionally) fetcher. moon Moon: physical constants, analytical ephemeris, and IAU rotation model. planets Analytical planetary ephemerides (Mercury through Saturn) and related
ecliptic math helpers. rotation IAU rotation models for celestial bodies — shared infrastructure. sun Sun: physical constants, analytical ephemeris, and IAU rotation model. body_quat_to_rsw Transform a body-to-ECI quaternion into a body-to-RSW quaternion. rsw_quaternion Compute the RSW (Radial / Along-track / Cross-track) orbital frame
quaternion from satellite position and velocity in a simple Earth-centered
inertial frame. Gcrs Geocentric Celestial Reference System frame vector. Rsw Local orbital frame vector (Radial / Along-track / Cross-track). SimpleEcef Approximate Earth-centered Earth-fixed frame vector. SimpleEci Approximate Earth-centered inertial frame vector.