Design and Analysis of Direct Abort Orbits in the Earth-Moon Transfer Phase of Crewed Lunar Exploration Missions

Figure 5

Accurate two-impulse abort orbits in the three cases of two simulation scenarios.

(a) Accurate two-impulse abort orbits in the three cases (when the maximum abort return time is 1.5 times the minimum return time of a single-impulse abort orbit)

(b) Accurate two-impulse abort orbits in the three cases (when the maximum abort return time is 1.25 times the minimum return time of a single-impulse abort orbit)