1. Lunar Descent Trajectory
January 22, 2009
[John Aitchison] [Mission Ops]

2. Descent Trajectory Overview
[John Aitchison] [Mission Ops]

3. [John Aitchison] [Mission Ops]
Useful Numbers
ΔVtotal descent = 2 km/s
Approximately 98.8% on final descent, only 1.2% to perform parking to intermediary orbit
References
Bate, Mueller, and White. “Fundamentals of Astrodymanics”
Hawkins, Alisa. “Constrained Trajectory Optimization of a Soft Lunar Landing from a Parking Orbit”
Prado, Antonio. “A Survey on Trajectories to the Moon”
[John Aitchison] [Mission Ops]

4. Lunar Descent Code Reference
Please use the variables to the left (some are not yet defined in the program) when working on the lunar descent code.
[John Aitchison] [Mission Ops]

5. [John Aitchison] [Mission Ops]
Code (pg. 1)
[John Aitchison] [Mission Ops]

6. [John Aitchison] [Mission Ops]
Code (pg. 2)
[John Aitchison] [Mission Ops]

7. [John Aitchison] [Mission Ops]
Calculations (pg. 1)
[John Aitchison] [Mission Ops]

8. [John Aitchison] [Mission Ops]
Calculations (pg. 2)
[John Aitchison] [Mission Ops]

9. Important Descent Notes
[John Aitchison] [Mission Ops]