DEBRIS AVOIDANCE AND PHASE CHANGE MANEUVERS IN NEAR RECTILINEAR HALO ORBITS

Over the course of its lifetime, Gateway may execute excursions from its baseline NRHO that include short-lead maneuvers to avoid other spacecraft or debris objects or long-lead rephasing within the NRHO to support rendezvous or other mission objectives. The dynamical characteristics of the NRHO are distinct from those of low Earth and low lunar orbits due to the simultaneous gravitational influences of the Earth and Moon. Thus, new approaches for executing debris avoidance maneuvers (DAMs) and rephasing maneuvers are necessary. The current investigation proposes strategies for designing low-cost DAMs with short-lead planning time as well as rephasing maneuvers with many months of advance notice.