1. [Kara Akgulian] [Mission Ops]
Lunar Orbit Circularization Toy Ball Materials Lunar Access with Ground Tracking
February 26, 2009
[Kara Akgulian] [Mission Ops]

2. [Kara Akgulian] [Mission Ops]
Impulse Thrust
Solid Only
Boost of: 10m/s, 25m/s, 50m/s, 100m/s, 200m/s
Split Between: 1st Orbit, 1st and 2nd Orbits and 1st, 2nd and 3rd Orbits
3 Orbits: 1.) rp= km ra=50000 km 2.) rp= km ra= km
3.)rp= km ra=55000 km rp
Δv Boost (km/s)
mprop (kg)/Boost
Launch Cost ($)/Boost
Total Δv (km/s)
mprop (kg) Total
Launch Cost ($) Total
Total TOF (Days)
1837.4
0.01
2.19
9,400
0.63
154.85
665,000.00
56.51
0.03
5.49
24,000
153.48
659,000.00
23.09
0.05
11.03
47,000
0.6
146.64
629,000.00
12.27
0.1
22.27
96,000
7.4
0.2
45.36
195,000
5.36
2737.4
0.5
119.92
515,000.00
67.31
27.42
14.51
8.54
0.4
94.16
404,000.00
5.83
3737.4
0.42
99.24
426,000.00
77.23
404,100.00 31
16.31
9.47
6.57
Chart shows only boost in first orbit
Δv without boost is 0.38 m/s
Isp= 280 s
Mass of OTV=600 kg
Launch Cost/kg=$4292
Cost’s are additional
TOF= Time of Flight
[Kara Akgulian] [Mission Ops]

3. [Kara Akgulian] [Mission Ops]
Continuous Burn
Electric Propulsion
Solid Propulsion
Assumptions:
Constant Thrust at Optimum Level
Working with Energy Equations
Optimum Pointing Angle
Costs are additional
Total Δv (km/s)
mprop (kg)
Launch Cost ($)
TOF(Days) Δv
0.63
21.99
94,000.00
45.45
Δv+25%
0.79
27.61
118,000.00
57.07
Δv-25%
0.48
16.42
70,000.00
33.93
Values Used:
EP Isp= 1800 s
Solid Isp= 280 s
Mass of OTV=600 kg
Launch Cost/kg=$4292
EP Mass Flow Rate=5.6x10-6 kg/s
Solid mass Flow Rate= kg/s
Total Δv (km/s)
mprop (kg)
Launch Cost ($)
TOF(Min) Δv
0.63
156.22
670,000.00
1.45
Δv+25%
0.79
201.26
864,000.00
1.86
Δv-25%
0.48
113.72
488,000.72
1.05
[Kara Akgulian] [Mission Ops]

4. [Kara Akgulian] [Mission Ops]
Backup Slides
Δv split between the first two orbits rp
Δv Boost (km/s)
mprop (kg)/Boost
Launch Cost ($)/Boost
Total Δv (km/s)
mprop (kg) Total
Launch Cost ($) Total
Total TOF (Days)
1837.4
0.01
1.09
5,000
0.64
156.23
671,000.00
112.8
0.03
2.74
12,000
0.63
153.48
659,000.00
45.26
0.05
5.49
24,000
23.09
0.1
11.03
47,000
0.6
146.64
629,000.00
12.27
0.2
22.27
96,000
7.4
2737.4
4,700
0.51
121.24
520,000.00
134.56
0.5
119.92
515,000.00
53.96
27.42
14.51
8.54
3737.4
4,600
0.42
99.24
426,000.00
154.1
0.41
97.33
418,000.00
61.6
0.4
94.16
404,000.00 31
16.31
9.47
[Kara Akgulian] [Mission Ops]

5. [Kara Akgulian] [Mission Ops]
Δv split between the first three orbits rp
Δv Boost (km/s)
mprop (kg)/Boost
Launch Cost ($)/Boost
Total Δv (km/s)
mprop (kg) Total
Launch Cost ($) Total
Total TOF (Days)
1837.4
0.01
0.73
3,000
0.63
155.77
669,000.00
169.01
0.03
1.82
7,800
67.79
0.05
3.66
16,000
34.21
0.1
7.33
31,000
17.7
0.2
14.76
63,000
0.6
146.64
629,000.00
9.76
2737.4
0.51
121.68
522,000.00
201.88
0.5
119.92
515,000.00
80.69
40.65
20.9
0.47
111.23
477,000.00
11.28
3737.4
3,100
0.42
99.24
426,000.00
231.04
98.39
422,000.00
92.4
46.5
0.4
94.16
404,000.00
23.58
12.8
[Kara Akgulian] [Mission Ops]