Alternate DRM Proposalfor Moon Next Scenario
Nov. 15, 2011
1
Naoki SatoJAXA Space Exploration Center (JSPEC)
Nov. 15, 2011
Background
� Current transportation architecture for GER (not only for Moon Next Scenario) is based on:� US SLS and MPCV
� Russian Next Generation Space Launch Vehicle and SpacecraftVehicle and Spacecraft
� Large CPS and/or SEP
� Small or Medium elements should be considered in order to have:� More flexibilities and robustness of program
� More possibilities to involve commercial industries and/or International Partners
2
One possibility for Collaborated Mission Scenario
MOONMOON
Small CPS 2Small CPS 3
Small CPS 2Dock All Elements(crew transfer)
Utilize small
size CPS
3
EARTHEARTH
Small CPS 1, 2
SLS
Small CPS 1
Small CPS 1, 2, 3
Lunar Lander
SLS
Small CPS 1
MPCV
One possibility for Collaborated Mission Scenario
MOONMOON
Small CPS 2Small CPS 3
Small CPS 2Dock All Elements(crew transfer)
This idea could
utilize IP or
Commercial
Launchers
4
EARTHEARTH
Small CPS 1, 2
Small CPS 1
Small CPS 1, 2, 3
Lunar Lander
Small CPS 1
Crew Vehicle
Backup IP or commercial Launchers
・・・・・・・・・・・・ ・・・・・・・・・・・・
Small CPS Characteristics (notional)
� Length and Diameter will be around 10m x 4m
� Total weight will be 26 t
� Thrust will be around 60 klb
� Includes avionics, propulsion, and attitude
control for automated RVD, and power system
� Can be easily tailored to 2nd Stage for Other
Φ4m
10m
� Can be easily tailored to 2nd Stage for Other
Launcher
5
≒≒≒≒SmallCPS
2nd Stage for Other Launcher
Alternate Design Reference Mission Using SEP
5 d Transit
CPS 1
MOONMOON
100 km Low
Lunar Orbit
5 d Transit
CPS 2
Dock All Elements
(crew transfer)
~170 d
Transit
SEP
5 d Transit
CPS 2
Dock All Elements
(crew transfer)
6
LEO 407 km
x 407 km
EARTHEARTH
SLS
CPS 1
Lunar
Lander
SLS
Transit
SEP
Lunar
Lander
CPS 2
SLS
MPCV
with Crew
CPS 2
MPCV
with Crew
SEP
SEP Transportation and Concept
GTO(300××××36000km)
GTOInsertion LLO
(100km)
SEP
Lunar
Lander
7
LandingInsertion
(100km)
SEP Concept (Notional)Thrust: 10Ndelta V: 3500m/sPropellant: 8tPower: 200kWTotal Weight: 15t(*)P/L(Lunar Lander)=35t