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Constellation Program Overview

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Constellation Program Overview Constellation Program Overview October 2008 hris Culbert anager, Lunar Surface Systems Project Office ASA/Johnson Space Center Constellation Program EarthEarth DepartureDeparture OrionOrion -- StageStage CrewCrew ExplorationExploration VehicleVehicle AresAres VV -- HeavyHeavy LiftLift LaunchLaunch VehicleVehicle AltairAltair LunarLunar LanderLander AresAres II -- CrewCrew LaunchLaunch VehicleVehicle Lunar Capabilities Concept Review EstablishedEstablished Lunar Lunar Transportation Transportation EstablishEstablish Lunar Lunar Surface SurfaceArchitecturesArchitectures ArchitectureArchitecture Point Point of of Departure: Departure: StrategiesStrategies which: which: Satisfy NASA NGO’s to acceptable degree ProvidesProvides crew crew & & cargo cargo delivery delivery to to & & from from the the Satisfy NASA NGO’s to acceptable degree within acceptable schedule moonmoon within acceptable schedule Are consistent with capacity and capabilities ProvidesProvides capacity capacity and and ca capabilitiespabilities consistent consistent Are consistent with capacity and capabilities withwith candidate candidate surface surface architectures architectures ofof the the transportation transportation systems systems ProvidesProvides sufficient sufficient performance performance margins margins IncludeInclude set set of of options options fo for rvarious various prioritizations prioritizations of cost, schedule & risk RemainsRemains within within programmatic programmatic constraints constraints of cost, schedule & risk ResultsResults in in acceptable acceptable levels levels of of risk risk Transportation System Ares I Elements Instrument Unit Stack Integration • Primary Ares I control • 2M lb gross liftoff weight avionics system • 325 ft in length • NASA Design / Boeing • NASA-led Production Orion CEV First Stage • Derived from current Shuttle RSRM/B Upper Stage Interstage • Five segments/Polybutadiene Acrylonitride (PBAN) propellant • 305k lb LOX/LH2 stage • Recoverable • 18 ft diameter • New forward adapter • Aluminum-Lithium (Al-Li) structures • Avionics upgrades • Instrument Unit and Interstage • ATK Launch Systems • Reaction Control System (RCS) / roll control for first stage flight • Primary Ares I control avionics system • NASA Design / Boeing Production Upper Stage Engine • Saturn J-2 derived engine (J-2X) • Expendable • Pratt and Whitney Rocketdyne DAC 2 TR 5 Orion Spacecraft Overview Mission Summary Mission Summary Max Crew 4 (lunar), 6 (ISS) Element Mass Targets CrewedMax Crew Mission Duration 21.1 4 (lunar), days 6 (ISS) CM ISSCrewed GLOW Mission Limit Duration 27,676 21.1 days kg LunarISS GLOW GLOW Limit Limit 30,257 27,676 kg kg ISS: 9,525 kg TLILunar Control GLOW Mass Limit20,185 30,257 kg kg Lunar: 8,732 kg LoadedTLI Control SM Delta Mass V (lunar) 1,492 20,185 m/s kg TankLoaded Sizing SM Delta Delta V V (lunar) (lunar)1,560 1,492 m/s m/s Tank Sizing Delta V (lunar) 1,560 m/s SA LAS 627 kg 7,260 kg ConfigurationConfiguration (606D) (606D) Pressurized Volume (Total) 19.4 m3 (686 ft3) Pressurized Volume (Total) 19.4 m3 (686 ft3) SM Propellant MMH/N2O4 SM Propellant MMH/N2O4 CM Propellant Hydrazine CM Propellant Hydrazine Payload (Pressurized Lunar Return) 100kg SM Payload (Pressurized Lunar Return) 100kg Radiator Area 20.25 m2 (218 ft2) ISS: 8,808 kg Radiator Area 20.25 m2 (218 ft2) CM Batteries 6 x 55 A-hr Lunar: 12,510 kg CM Batteries 6 x 55 A-hr Loaded CM Prop (Lunar) 146 kg Loaded CM Prop (Lunar) 146 kg SM Batteries 2 x 55 A-hr SM Batteries 2 x 55 A-hr SA Solar Array Diameter 5.84 m Solar Array Diameter 5.84 m (Jettisoned) Loaded SM Prop (Lunar) 8,185 kg Loaded SM Prop (Lunar) 8,185 kg 1,012 kg CEV +Z OME Isp (Mean) 326 s OME Isp (Mean) 326 s Current Mass Estimates ISS GLOW: 25,779 kg (Predicted) CEV +X ISS Injected: 17,629 kg (Predicted) Orion Stack Lunar GLOW: 29,954 kg (Predicted) STA 1000.00 (Launch Configuration) Lunar Injected: 21,804 kg (Predicted) CLV I/F Lunar TLI: 19,927 kg (Predicted) Ares V Concept Gross Lift Off Mass: 3,704.5 t (8,167.1k lbm) Altair Lunar Lander Integrated Stack Length: 116 m (381 ft) Payload Adapter Solid Rocket Boosters (2) J–2X • Two recoverable 5.5-segment Payload Loiter Skirt PBAN-fueled, steel-casing Shroud Interstage boosters (derived from current Ares I first stage Earth Departure Stage (EDS) • One Saturn-derived J–2X LOX/LH2 engine (expendable) • 10 m (33 ft) diameter stage Two representative configurations shown • Aluminum-Lithium (Al-Li) tanks Multiple configurations for adding a 6th Engine being traded • Composite structures, Instrument Unit RS–68B and Interstage Engines • Primary Ares V avionics system Core Stage (6) • Six Delta IV-derived RS–68B LOX/LH2 engines (expendable) • 10 m (33 ft) diameter stage • Composite structures • Aluminum-Lithium (Al-Li) tanks Altair Lunar Lander •4 crew to and from the surface • Seven days on the surface • Lunar outpost crew rotations •Global Access Capability •Anytime return to Earth • Capability to land 14 to 17 metric tons of dedicated cargo • Airlock for surface activities •Descent stage: •Liquid oxygen / liquid hydrogen propulsion • Ascent stage: • Hypergolic Propellants or Liquid oxygen/methane Altair Crewed Vehicle Concept Windows EVA Suit Storage Hammocks Umbilical Storage Lockers EVA Hatch Crew Display Monitor Hand Controls Storage Lockers Trash Bag Storage Airlock Module / Descent Module Adapter Lunar Sample Box AM-Airlock Airlock Connecting Structure Thermal Insulation Airlock Avionics AM Connecting Egress boxes (x2) Structure Hatch DM LH2 Fuel (Remains on DM) Life Support Tank (x4) Oxygen Tank Pressurant Landing Leg Tank (x2) (x4) DM RCS Thruster Pod (x4) LOX Tank Support Cone (x4) RCS Tanks DM Main Engine Radiator (x2) EVA System (Suit) is Integral Science EVA System Architecture Configuration 2 Suit is utilized for all phases of the lunar mission, i.e., transportation and lunar surface operations LEA/Microgravity EVA Suit Lunar Surface EVA Suit (Configuration 1) (Configuration 2) Change to soft rear Two ‘shortie‘ cores entry design Shoulder bearing Common PLSS (8 Hr EVA) retained for mobility helmet Enhanced shoulder Removed mobility Body Seal Closure Common Waist Bearing lower arms IVA Gloves EVA Gloves Removed Hip Multi-hip Bearing Bearings Rear entry hatch TMG/MLI for relevant Thigh Disconnect Common environment – incl. Retained for legs/boots modularity boot covers * Modular, reconfigurable, component-based architecture that meets various mission objectives Mission Key Driving Requirements MOONMOON Example of short stay Design Reference Mission 7 d Ascent 1,881 m/s (6,171 ft/s) 100 kg (220 lbm) pressurized return payload TBD hrs post lunar ascent Descent ΔV 2,030 m/s (6,660 ft/s) LH2/LO2 descent engine restartable/throttleable LLO 100 km (54nm) Sizing: Altair ΔV for LOI Altair Performs LOI 1,000 m/s (3,281 ft/s) 3-burn LOI TEI 1,492 m/s (4,895 ft/s) 1,000 m/s (3,281 ft/s) 1-5 days Altair LLO loiter (Tanks sized for 1, 560 m/s (5,118 m/s) (Propellant load for 950 m/s) Altair TLI Injected Control Mass 45 t (99,200 lb ) m Orion • Orion TLI Control Mass 20,185 kg (44,500 lbm) EDS TLI Injection Capability 66.1 t (145,726 lbm) + 5 t reserve EDS Performs TLI 3,175 m/s (10,417 ft/s) ERO up to 241km (130nm), minimum 222 km, LEO attitude = Gravity Gradient -20x185 km (-11x100 nm), 29º Ares-I Delivered Mass 23.6 t (52,070 lbm) 4 days LEO loiter EARTHEARTH ≥ 90 min. 1 - 5 d ~4d 1-5d 7 d 1d <5.8d Ares-V Extensibility to Mars Missions 51.00.47: Performance Summary • Mars Architecture study conducted during 2007 51.00.47 Performance Summary 200 in parallel with LAT-1 and LAT-2 Performance Performance Margin Margin 175 9.0 13.7 Total = 158.5 t Total = 153.8 t • Key Emphasis: 150 ASE ASE 5.2 7.9 125 51.00.47 Gross – Update Mars reference architecture LEO Payload 161.8 Lander/Ballast 100 – Assess strategic linkages between lunar and Mars Allocation 89.6 Mass (t) 75 Lander/Ballast strategies and systems Allocation 136.9 50 • Launch Vehicle Assessments Included: Aero-Shroud 25 50.0 – Staging altitude 0 Reference 51.00.47 to 222km Dual-Use Aero Shroud to 407km Jettisoned Aero Shroud to 407km – Payload size (length and diameter) - Baseline vehicle flies to lower orbit than Dual Use Shroud mission [222km (120nmi) circ vs. 407km (220nmi) circ] - Baseline 51.00.47 LEO payload (EDS propellant and Lunar Lander) is reported as ‘Gross Payload’. - Vehicles are structurally sized to accommodate larger shrouds. – Launch rate and frequency 5/30/2008 9:39:21 AM 4 – Delivery of both Mars payloads and using the Ares-V shroud as the Mars entry aeroshell 51.00.48: Performance Summary • Bottom Line: 51.00.48 Performance Summary 200 – Ares-V 51.xx series launch vehicles provide Performance Performance 175 Margin Margin 8.4 13.1 adequate performance (130+ t) Total = 151.5 t Total = 146.8 t 150 ASE ASE – Total number of Ares-V launches per Mars 4.8 125 51.00.48 Gross 7.6 LEO Payload mission: 7+ with a launch frequency of 30 days 154.3 100 Lander/Ballast Allocation Mass (t) 83.6 or less 75 Lander/Ballast Allocation 130.8 – Shroud volume is a key driver (10 m x 30 m) 50 Aero-Shroud 25 • Further Assessments: 50.0 0 – Further refinement of Dual use shroud concept Reference 51.00.48 to 222km Dual-Use Aero Shroud to 407km Jettisoned Aero Shroud to 407km - Baseline vehicle flies to lower orbit than Dual Use Shroud mission [222km (120nmi) circ vs. 407km (220nmi) circ] - Baseline 51.00.48 LEO payload (EDS propellant and Lunar Lander) is reported as ‘Gross Payload’. – Further refinement of mission payload strategies - Vehicles are structurally sized to accommodate larger
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