a LTA1 is the low thrust acceleration for stage 1.
b Estimated diameter of asteroids [28–31].
c Estimated thrust for stage 1.
d Total time-of-flight for capture for both stages.
e Instantaneous change in velocity.
f Radius of perigee divided by radius of Moon’s orbit.
g LTA2 is the low thrust acceleration for stage 2. h Estimated thrust for stage 2.
i Velocity upon entering Earth’s sphere of influence.
j Estimated using absolute magnitude data and approximate albedo of 0.25. See Eq. (7).