Research Article

Optimal Two-Impulse Trajectories with Moderate Flight Time for Earth-Moon Missions

Table 6

Lunar mission, major parameters, L E O = 4 6 3 km, L M O = 3 0 0 km.

ModelManeuver Δ 𝑣 T o t a l Δ 𝑣 1 Δ 𝑣 2 𝑇 𝜃 𝐸 𝑃 ( 0 ) Feasibility
(km/s) (km/s) (km/s) (days) (deg)

3.8483 3.0648 0.7835 4.560 −116.881 Yes
3.8504 3.0652 0.7852 14.157 8.851 Yes
SimplifiedCounterclockwise 3.8471 3.0646 0.782523.798 135.197 Yes
PCR3BP 3.8127 3.0585 0.7542 32.111 232.260 Yes
3.8161 3.0591 0.7570 40.874 347.201 Yes
3.7633 3.0498 0.7135 58.685 220.409 Yes

3.8541 3.0678 0.7863 4.760 −114.110 Yes
3.8559 3.0681 0.7878 14.809 17.504 Yes
SimplifiedClockwise 3.8513 3.0673 0.7840 24.948 150.265 Yes
PCR3BP 3.8026 3.0586 0.7440 32.080 232.475 Yes
3.8060 3.0592 0.7467 40.864 347.620 Yes
3.7530 3.0498 0.7031 58.488 220.014 Yes