Arenstorf Orbit model.
•The Arenstorf orbit, also known as the restricted three
body problem, was used to test
the OEC and CEOT methods. It consists of a pair of bodies, m1 and m2 , rotating around the z-axis with a third body, of small mass, orbiting the
system in the x-y plane.
The system units are such that sum of masses, G and angular velocity are one, then,
•This system has the feature of close approaches
between the orbiting
body and the smaller of the
rotating pair of
bodies.
•In this setting large improvements in integrator
efficiency can be
obtained by using a variable
stepsize or time
re-parameterisation based
on the distance between
the bodies of interest.
