A potentially more energy-efficient modification to this procedure, proposed by Hoelker and Silber, applies a change in energy during the third time an object intersects a line defined by the eccentricity vector.
A potentially more energy-efficient modification to this procedure, proposed by Hoelker and Silber, applies a change in energy during the third time an object intersects a line defined by the eccentricity vector. The "modified" version of this technique incorporates a small change in flight angle to allow for three-dimensional movement, since the non-modified form of this technique usually requires that the final output be coplanar with the input. "Phasing" employs this technique to change an object's true anomaly, and has the feature that the delta-v's used have the same magnitude but opposite directions. To use this technique to get an object farther away from the focus, an increase in speed is applied at an ellipse's perigee, and another increase in speed is later applied at the apogee. For 10 points, name this technique which uses half an orbit to efficiently move between two other circular orbits, a type of "transfer" named for a German engineer.
A potentially more energy-efficient modification to this procedure, proposed by Hoelker and Silber, applies a change in energy during the third time an object intersects a line defined by the eccentricity vector.
Hohmann Transfer Orbit [or  HTO]