Trajectory Design for the Genesis Backup Orbit and Proposed Extended Mission (AAS 04-227)
Navigation of the GRAIL Spacecraft Pair Through the Extended Mission at the Moon (AAS 13-711)
Trans-Lunar Cruise Trajectory Design of GRAIL (Gravity Recovery and Interior Laboratory) Mission
Navigation of the EPOXI Spacecraft to Comet Hartley 2 (AAS 11-486)