Path: CubeSat/Visualization
% Plot an orbit track. Converts the inertial positions to planet-fixed.
Pass in the time array and the initial epoch. The epoch may be a Julian date
or a datetime array. The initial position is marked with an 'o'. Ground
stations are marked with 'x'.
You generate the planet data structure like this example;
The replication of the image map is needed because the png is gray scale.
p = imread('planet.png');
p3(:,:,1) = p;
p3(:,:,2) = p;
p3(:,:,3) = p;
planet.planetMap = p3;
planet.radius = 1000;
planet.name = 'MyPlanet';
Type GroundTrack for a demo showing an orbit around the Earth.
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Form:
GroundTrack( r, t, jD0, planet, gS )
GroundTrack( r, t, datetime, planet, gS )
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Inputs
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r (3*n,:) ECI position vectors (km)
t (1,:) Time array (sec)
jD0 (1,1) Epoch Julian date
-or-
datetime (1,6) [year month day hour minute seconds]
planet (1,:) Planet (default is earth)
-or-
(.)
(1,:) name
(:) planetMap
(:) planetColorMap (optional)
(1,1) radius (km)
gS (2,:) Ground stations [lat;lon] (deg)
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Outputs
-------
h (1,1) Figure handle
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See also ECIToPlanet, R2LatLon, Date2JD
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AerospaceUtils: Coord/R2LatLon SC: BasicOrbit/Period SC: BasicOrbit/RVFromKepler SC: Ephem/ECIToPlanet SC: SCMat/Earth SC: SCMat/EarthMR Common: Graphics/Map Common: Graphics/NewFig Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Time/Date2JD Common: Time/JD2000
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