1. Landing Direct Via ELP Direct Via ELP Trans-lunar injection energy (km2/s2) -2.0 -1.9 -0.6 -1.9 -0.6 Manifold insertion V (m/s) N/A N/A 30 N/A 30 Orbit insertion V (m/s) N/A 550 380 550 10 Landing V (m/s) 2528 2015 2015 2370 2370 FT (days) 5 5 100 10 100 Launch period (days) 8 (Twice) 3 20 continuous continuous Figure 17. Summary of Trans-Lunar Trajectories. Launch injection, post-launch V, FT, and launch periods are summarized foreach kindof trans-lunar trajectory.
2. Moon Liftoff V (m/s) 2650 2340 2335 Manifold insertion V (m/s) N/A 0 40 FT (days) 5 100 160 Moon Liftoff Opportunity Aug-2009 to Jan-2010 Dec-2008 to Mar-2009 continuous Figure 18. Summary of Trans-Lunar Trajectories. Launch injection, post-launch V, FT, and launch periodsare summarized foreach kindof trans-lunar trajectory.
3. Lunar communications with libration-point satellites.