L2OrbitSim:

Path: Orbit/ThreeBody

% Simulate the Earth orbit to L2 point low thrust transfer. 
 Consists of the sequence: spiral out / coast / reverse thrust / halo orbit 
   
  Type L2OrbitSim for a demo.
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   Form:
   [t,y,dv] = L2OrbitSim( x, d, times )
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   ------
   Inputs
   ------
   x       (4,1)   Decision variables [phase, T1, T2, dT]
                   - phase   Initial phase angle of Earth orbit in xy plane
                   - T1      Time to stop spiral thrust arc
                   - T2      Time to start insertion thrust arc
                   - dT      Duration of reverse thrust arc

   d        (.)    Data structure describing spacecraft model and CRTBP
                     system
   
   times   (1,:)   Vector of times over which to evaluate dynamic system.
                   Optional. Default is to use d.times.

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   Outputs
   -------
   t       (N,1)   Time vector 
   y       (N,7)   State vector: [x, y, z, vx, vy, vz, mass]
   dv      (1,1)   Total delta-v over trajectory

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 References:

   Online course notes, Prof. J.D. Mireles James, Rutgers University. 
   http://www.math.rutgers.edu/~jmireles/notes.html

   M. T. Ozimek and K. C. Howell, "Low-Thrust Transfers in the Earth?Moon 
   System, Including Applications to Libration Point Orbits", 
   JOURNAL OF GUIDANCE, CONTROL, AND DYNAMICS Vol. 33, No. 2, 
   March/April 2010, DOI: 10.2514/1.43179
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Children:

Common: Graphics/Plot2D
Common: Graphics/Plot3D
Math: Linear/Cross
Math: Linear/Unit
Orbit: OrbitData/SEML2OrbitData
Orbit: OrbitData/SunEarthMoonSystemConstants
Orbit: ThreeBody/FCRTBPRHS

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