OptimalPeriodNonKepler:

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   Optimal orbit rate for minimizing required sail lightness parameter.
   This is for sun-centered orbits only. The inputs can be dimensionless.

   Since version 7.
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   Form:
   [wOpt,P] = OptimalPeriodNonKepler( z, rho );
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   Inputs
   ------
   rho           (1,1)    Halo amplitude (in-plane)
   z             (1,1)    Out of plane displacement

   -------
   Outputs
   -------
   wOpt          (1,1)    Optimal orbit rate (rad/sec)
   P             (1,1)    Orbit period (sec)

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   Reference: Colin R. McInnes, "Solar Sailing: Technology, Dynamics and Mission  
              Applications", Springer-Praxis, London, 1999, p. 179
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Children:

Common: Database/Constant