Path: Orbit/OrbitManeuver
% Delta-V needed to control the longitudinal acceleration in geo. Computes the delta-v needed per year to control the longitudinal acceleration due to the Earth triaxial gravitational harmonics in geosynchronous orbit. The time between maneuvers will be infinite at the stable points. If the gravitational parameters are not entered it will load the GEM-T1 model. The model coefficients should be unnormalized. Type DVGeoTrx for a demo. -------------------------------------------------------------------------- Form: [dV, acc, dT] = DVGeoTrx( lon, box, s, c, j, mu, a ) -------------------------------------------------------------------------- ------ Inputs ------ lon (1,:) East longitude (deg) box (1,1) Stationkeeping box (deg) s (36,36) S terms c (36,36) C terms j (36) m = 0 terms mu (1,1) Spherical gravitational potential a (1,1) Earth radius ------- Outputs ------- dV (1,:) Total delta v per year (m/sec) acc (1,:) Acceleration (deg/day^2) dT (1,:) Time between maneuvers --------------------------------------------------------------------------
Orbit: GravityModels/LoadGEM Orbit: GravityModels/NormalizationMatrix Orbit: GravityModels/UnnormalizeGravity Orbit: OrbitMechanics/AGravity SC: SCMat/GEMT1 Common: CommonData/SwooshWatermark Common: General/CellToMat Common: General/DeBlankLT Common: General/DispWithTitle Common: General/MatToCell Common: General/Watermark Common: Graphics/Mesh2 Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Common: Graphics/XLabelS Common: Graphics/YLabelS Common: Graphics/ZLabelS Math: Analysis/PDAL Math: Analysis/SCHarm Math: Linear/DupVect Math: Linear/Factorl
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