|
SUPPORT SITE |
|
|
|
SUPPORT SITE |
|
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.
--------------------------------------------------------------------------
Form:
GroundTrack( r, t, jD0, planet, gS )
GroundTrack( r, t, datetime, planet, gS )
--------------------------------------------------------------------------
------
Inputs
------
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)
-------
Outputs
-------
none
--------------------------------------------------------------------------
See also ECIToPlanet, R2LatLon, Date2JD
--------------------------------------------------------------------------
AC: ACData/ACTConstants AerospaceUtils: Coord/R2LatLon Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Database/Constant Common: General/CellToMat Common: General/DeBlankLT Common: General/DeleteCell Common: General/MatToCell Common: General/Watermark Common: Graphics/Axis3D Common: Graphics/Ellipsd Common: Graphics/Map Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/Plot3D Common: Graphics/PltStyle Common: Graphics/TimeLabl Common: Graphics/TitleS Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Common: Time/DTSToDTA Common: Time/Date2JD Common: Time/JD2000 Common: Time/JD2T Common: Time/JDToMidnight Common: Time/T2JD Math: Linear/Cross Math: Linear/DupVect Math: Linear/Mag Math: Linear/Unit Math: MathUtils/R2P5 Math: Trigonometry/CosD Math: Trigonometry/SinD SC: BasicOrbit/E2M SC: BasicOrbit/Nu2E SC: BasicOrbit/Nu2M SC: BasicOrbit/Period SC: BasicOrbit/RV2El SC: BasicOrbit/RVFromKepler SC: Ephem/ECIToPlanet SC: Ephem/EOfE SC: Ephem/EarthNut SC: Ephem/EarthPre SC: Ephem/EarthRot SC: Ephem/GMSTime SC: Ephem/MSidDay SC: Ephem/MoonRot SC: Ephem/Moons SC: Ephem/NutDelta SC: Ephem/ObOfE SC: Ephem/TruEarth SC: SCData/sCTConstants SC: SCMat/EarthMR
Back to the CubeSat Module page