Planar Bicircular Restricted 4-Body Problem (PBR4BP)

Collection of codes to propagate orbits in the Planar Bicircular Restricted 4-Body Problem.

The codes collected here are meant to propagate and present the orbit of a spacecraft/particle in the Earth-Moon-Sun Planar Bicircular Restricted 4-Body Problem. The masses are organised as follows:

• Primary = Earth
• Secondary = Moon
• Tertiary = Sun
• Quaternary = Spacecraft

The codes allora to:

• PBR4BP_data.m = Produces the parameters used in the PBR4BP
• PBR4BP.m = Propagator in this astrodynamical model
• Syn2ECI = Transformation from PBR4BP Synodic r.f. (rotating frame) to Earth Centred Inertial r.f. (ECI), both in dimensionless forms.
• Syn2MCI = Transformation from PBR4BP Synodic r.f. (rotating frame) to Moon Centred Inertial r.f. (MCI), both in dimensionless forms.