While the Oberth effect means that a rocket that is traveling at a high velocity can make much larger changes to its energy than can a rocket traveling at low velocity, this does not mean that it is always best to perform maneuvers as deep as possible in a gravity well, even to circularize an orbit or depart for interplanetary travel. It is, however, always best to circularize an orbit at either its periapsis or apoapsis . CircBurn?s purpose is to indicate the optimal periapsis for a given hyperbolic trajectory. Due to the complications involved in attaining the optimal periapsis, CircBurn is only informative: it will never alter a vessel?s current trajectory or flight plan .
Download: CircBurn 1.1.0 Documentation: Manual (in the zip, but may update more frequently) Source code (GPL): github Support my efforts: