Path: SC/Environs
% Compute the environment parameters for the Earth. This data is required by the disturbance model. In order to calculate drag, the velocity must be computed relative to the atmosphere; this routine uses a simplified calculation that ignores Earth nutation. This routine calculates eclipses. A simple dipole model is used for the magnetic field. -------------------------------------------------------------------------- Forms: e = EarthEnvironment( rECI, vECI, jD, e ) -------------------------------------------------------------------------- ----- Input ----- rECI (3,:) Position vectors in ECI frame vECI (3,:) Velocity vectors jD (1,:) Time scalar or array in Julian date e (.) Initial structure ------ Output ------ e (.) Environment data with updated data, see Disturbances -------------------------------------------------------------------------- See also: AtmDens2, SunV2, Eclipse, BDipole, VAtm --------------------------------------------------------------------------
AerospaceUtils: AtmosphericCalculations/AtmDens2 Orbit: OrbitMechanics/RVOrbGen SC: Environs/BDipole SC: Environs/VAtm SC: Ephem/Eclipse SC: Ephem/SunV2 SC: Visualization/PlotPlanetOrbit Common: Database/Constant Common: Graphics/Plot2D Common: Graphics/TimeLabel Common: Time/JD2000 Math: Linear/Mag
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