advanced space exploration leo propellant depot: space transportation impedance matching space...
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Advanced Space Exploration
LEO Propellant Depot:Space Transportation Impedance Matching
LEO Propellant Depot:Space Transportation Impedance Matching
Space Access 2010April 8-10, 2010
Dallas BienhoffManager, In-Space & Surface Systems703-872-4004; [email protected]
Space Access 2010April 8-10, 2010
Dallas BienhoffManager, In-Space & Surface Systems703-872-4004; [email protected]
Advanced Space Exploration
LEO Propellant Depot Assembly and OperationsLEO Propellant Depot Assembly and Operations
100324_LPD_GSFC_ServicingMarch 24-26, 2010 2 of 8
Advanced Space Exploration 100324_LPD_GSFC_Servicing
A Depot-Enabled Reusable Cislunar Architecture: Matched Impedance – What is Launched is LandedA Depot-Enabled Reusable Cislunar Architecture: Matched Impedance – What is Launched is Landed
March 24-26, 2010 3 of 8
Zero-gCrew Module
PersonnelCargo
PropellantDepot Tug
PersonnelPropellantDepot Tug
PersonnelCargo
LanderPersonnelPropellant
Cargo
g-orientedCrew Module
Advanced Space Exploration 100324_LPD_GSFC_Servicing
Systems Comprising an Impedance Matched Cislunar Architecture Systems Comprising an Impedance Matched Cislunar Architecture
Low-cost launch providerSpace X Falcon 9-3.6 shown
2 Modular Propellant Depots180 and 90 t capacity
LOx/LH
Depot Tug withPropellant Carrier9400 kg PC mass
LOx/LH
Reusable Aerobrake Transfer StageGTO and/or GEO delivery
LOx/LH
March 24-26, 2010 4 of 8
Space Transfer StageEML1 to Perilune delivery
LOx/LH
Lunar LanderPerilune to Surface
LOx/LH
Personnel Modules0-g and g oriented
Advanced Space Exploration 100324_LPD_GSFC_Servicing
A LEO Propellant Depot Operational Concept:Missions Not Constrained by Launch CapabilityA LEO Propellant Depot Operational Concept:Missions Not Constrained by Launch Capability
Low-cost launch provider
Space X Falcon 9-3.6
shownAres V
Earth Orbit Lunar
Orbit
InterplanetaryTrajectories
Reenter & Reuse
RATS
RATS
RPC
EDS/LSAM
March 24-26, 2010 5 of 8
Advanced Space Exploration
Operational Flexibility Enabled With ISRUOperational Flexibility Enabled With ISRU
CaseSystem
A B C D E F G
ARTV Earth Earth Earth Earth Earth Earth Moon
DT Out Earth Earth Earth Earth Earth Earth Moon
DT Back Earth Earth Moon Earth Moon Moon Moon
SRTV Earth Earth Earth Moon Moon Moon Moon
LSS Out Earth Earth Earth Earth Earth Moon Moon
LSS Back Earth Moon Moon Moon Moon Moon Moon
March 24-26, 2010 6 of 18100324_LPD_GSFC_Servicing
• Lunar propellant can be provided for none, one, or all mission legs• Selection can be dependent on
• Mission efficiency (prop/payload; prop needed/prop used)• Price at depot• Operational failures
Advanced Space Exploration
Comparing Cislunar Options with Constellation Comparing Cislunar Options with Constellation
Case
Param
AAll
EarthB C D E
FLPDEarth
GAll
MoonConst
Expended
1 use each system
1 use each system
1 use each system
1 use each system
1 use each system
1 use each system
1 use each system
OrionEDSAltair
Prop – 20 t to
180 180 231 195
Prop – 18 t from
182 140 120 N/A
Prop for crew
143 142 117 226
Round Trip Payload
11 18 18 N/A
March 24-26, 2010 7 of 8100324_LPD_GSFC_Servicing
Advanced Space Exploration
Mission and Total Propellant Knowledge Needed to Define Economic RequirementsMission and Total Propellant Knowledge Needed to Define Economic Requirements
March 24-26, 2010 8 of 8100324_LPD_GSFC_Servicing
• Mission propellant defines sales volume
• Total propellant defines production required to meet sales
• Data for delivering 20 t to Moon
• Constellation shown for comparison
Advanced Space Exploration
An “Impedance Matched” Cislunar Architecture…An “Impedance Matched” Cislunar Architecture…
Matches transport capability to ETO launch capability
Uses path specific systems
Uses multi-mission systems for Space transportation
Incorporates propellant depots at payload transfer nodes
Can use propellant from Earth or Moon for any mission leg
ISRU economic requirements driven by production versus use
March 24-26, 2010 9 of 8100324_LPD_GSFC_Servicing