Path: CubeSat/Simulation
% Demonstrate a CubeSat attitude and power system dynamics.
This simulation includes drag and radiation pressure. The only actuator
available for attitude is magnetic torquers, which is modeled as a
dipole. Performs an animation at the end which may take a few minutes.
The satellite is initialized pointing to the Earth with a rotation equal
to orbit rate, to nominally maintain that pointing. The z body axis is
pointed towards the Earth (nadir).
Things to try:
1. Turn surface disturbances off by uncommenting the line setting
d.surfData to empty; notice that the altitude no longer drops.
2. Initialize the battery charge b0 to zero
3. Comment out or change the fixed dipole in the for loop
4. Try a 1U instead of a 3U
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See also AnimQ, QForm, Plot2D, TimeLabl, RK4, Skew, Date2JD,
InertiaCubeSat, CubeSatAero, RHSCubeSat, CubeSatFaces, BDipole,
SolarFluxPrediction
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%
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Copyright (c) 2009 Princeton Satellite Systems, Inc.
All rights reserved.
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Since version 8.
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AC: ACData/ACTConstants AerospaceUtils: AtmosphericCalculations/AtmDens2 AerospaceUtils: AtmosphericCalculations/AtmJ70 AerospaceUtils: AtmosphericCalculations/BaromExp AerospaceUtils: AtmosphericCalculations/DiffusionExp AerospaceUtils: Coord/ECIToEF AerospaceUtils: Coord/QIToBDot AerospaceUtils: Coord/QLVLH AerospaceUtils: Coord/R2LatLon CubeSat: AttitudeControl/InertiaCubeSat CubeSat: Power/SolarCellPower CubeSat: Simulation/CubeSatAero CubeSat: Simulation/CubeSatEnvironment CubeSat: Simulation/CubeSatRadiationPressure CubeSat: Simulation/RHSCubeSat CubeSat: Utilities/CubeSatAttitude CubeSat: Utilities/CubeSatFaces CubeSat: Utilities/CubeSatModel CubeSat: Visualization/DrawCubeSat CubeSat: Visualization/GroundTrack Orbit: OrbitCoord/ConvertNORAD Orbit: OrbitCoord/SLR Orbit: OrbitMechanics/NORAD Orbit: OrbitMechanics/NORADToEl Orbit: OrbitMechanics/PropagateTLE Orbit: OrbitMechanics/RVOrbGen Orbit: Visualization/OrbTrack Plotting: Help/HelpSystem SC: BasicOrbit/CP2I SC: BasicOrbit/E2M SC: BasicOrbit/E2Nu SC: BasicOrbit/El2RV SC: BasicOrbit/M2E SC: BasicOrbit/M2EApp SC: BasicOrbit/M2EEl SC: BasicOrbit/M2EHy SC: BasicOrbit/M2Nu SC: BasicOrbit/M2NuPb SC: BasicOrbit/Nu2E SC: BasicOrbit/Nu2M SC: BasicOrbit/OrbRate SC: BasicOrbit/Period SC: BasicOrbit/RV2El SC: BasicOrbit/RVFromKepler SC: Disturbances/GravityGradientFromR SC: Disturbances/SolarF SC: Environs/BDipole SC: Environs/SolarFluxPrediction SC: Ephem/CEcl2Eq SC: Ephem/ECIToPlanet SC: Ephem/EOfE SC: Ephem/EarthNut SC: Ephem/EarthPre SC: Ephem/EarthRot SC: Ephem/EarthRte SC: Ephem/Eclipse SC: Ephem/GMSTime SC: Ephem/MSidDay SC: Ephem/MoonRot SC: Ephem/Moons SC: Ephem/NutDelta SC: Ephem/ObOfE SC: Ephem/Planets SC: Ephem/SolarSys SC: Ephem/SunV1 SC: Ephem/SunVectorECI SC: Ephem/TruEarth SC: SCData/sCTConstants SC: SCMat/EarthMR SC: SCMat/SolarFluxPredictions SC: Visualization/PlotPlanet SC: Visualization/PltOrbit SCPro: MannedVehicle/ISSOrbit Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: ComponentModels/Box Common: Control/C2DZOH Common: Database/Constant Common: FileUtils/FindDirectory Common: GUIs/Figui Common: General/CellToMat Common: General/DeBlankLT Common: General/DeleteCell Common: General/DispWithTitle Common: General/MatToCell Common: General/Watermark Common: Graphics/AddFillToPlots Common: Graphics/AxesCart Common: Graphics/Axis3D Common: Graphics/DrawVertices Common: Graphics/Ellipsd Common: Graphics/Map Common: Graphics/Mesh2 Common: Graphics/NPlot Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/Plot3D Common: Graphics/PltStyle Common: Graphics/SortFigs Common: Graphics/TextS Common: Graphics/TimeLabl Common: Graphics/TitleS Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Common: MassProperties/AddMass Common: MassProperties/IC623X3 Common: MassProperties/Inertias Common: Quaternion/AnimQ Common: Quaternion/Mat2Q Common: Quaternion/Q2Mat Common: Quaternion/QForm Common: Quaternion/QMult Common: Quaternion/QPose Common: Quaternion/QTForm Common: Time/DTAToDTS Common: Time/DTSToDTA Common: Time/Date2DN Common: Time/Date2JD Common: Time/JD2000 Common: Time/JD2Array Common: Time/JD2DN Common: Time/JD2Date Common: Time/JD2T Common: Time/JDToMidnight Common: Time/T2JD Math: Integration/RK4 Math: Linear/Cross Math: Linear/Dot Math: Linear/DupVect Math: Linear/Mag Math: Linear/Skew Math: Linear/SkewSq Math: Linear/SkewSymm Math: Linear/Unit Math: MathUtils/R2P5 Math: Trigonometry/ACosD Math: Trigonometry/CosD Math: Trigonometry/SinD
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