Path: SC/Ephem
% Generate Keplerian elements for the ISS Generates elements for the International Space Station from a two-element set from Celestrak, https://celestrak.com. Type ISSOrbit for a demo with a plot of the ISS ground track. If there are no outputs it will plot the elements using sgp as a propagator. Fixed elements are from 07/16/2020. 'latest' is the default set. These are saved in a persistent variable and updated only if more than 2 hours has elapsed since the last call, to avoid server errors. Elements are only updated on Celetrak once or twice per day. -------------------------------------------------------------------------- Form: ISSOrbit; % demo [el, jD0, s] = ISSOrbit( set ) -------------------------------------------------------------------------- ------ Inputs ------ set (1,:) 'high' 'low' 'latest' 'fixed' ------- Outputs ------- el (1,6) Elements vector [a,i,W,w,e,M] jD0 (1,1) Julian date of epoch s (1,166) The two line elements --------------------------------------------------------------------------
CubeSat: Visualization/GroundTrack Orbit: OrbitMechanics/NORADToEl Orbit: OrbitMechanics/RVOrbGen Common: Graphics/Plot2D Common: Graphics/TimeLabl Math: Linear/Mag
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