LETS Phase 3 Review 4/29/08

Agenda Team Introduction Daedalus Concept Concept of Operations Subsystem Overview Daedalus Performance Daedalus Vision Questions

Team LunaTech Nick Case, Project Manager Morris Morell, Systems Engineer Travis Morris, GN&C Greg Barnett, Thermal Systems Adam Garnick, Power Systems Katherine Tyler, Power Systems Tommy Stewart, Structures and Mechanisms Julius Richardson, Conops John Grose, Payload and Communications Adam Fanning, Communications Eric Brown, Technical Editor

Partners Mobility Concepts –Southern University Robert Danso McArthur Whitmore Sample Return Vehicle Design –ESTACA Julie Monszajin Sebastien Bouvet

Daedalus Lander

1.The Need 2.The Mission 3.The Solution

Concept of Operations

LPES Payload Micro-Seismometers Impact Accelerometer and Tilt Sensors Heat Flow Probe Geochemistry Package Water/Volatiles Detector Design Requirements Year Lifetime Impact Velocity: ~350 m/s Impact Force: ~4500 G’s Impact Depth: 1~2 m Scatter Distance: 500 m Penetration Web ESTIMATED PENETRATOR SIZE Length: 480mm to 600mm Diameter: 60mm Estimated Mass: 14kg LPES 22 Penetrators 16 Launched into Shackleton Crater 6 Launched into Lighted Region Spring-Loaded Ejection System

Daedalus Science Basic Requirements for Single Site Science Box: Determine Lighting conditions every 2 hours over the course of one year Study Micrometeorite flux Observe Electrostatic dust levitation and its correlation with lighting conditions

Daedalus Power Lithium Ion Batteries –Total of 9 Sony 1860HC –Total mass of kg –Total Volume of ft^3 Solar Cells –Total of 3 Gallium Arsenide Panels –Total mass of 46 kg –Total Surface area of ft^3 –Total Power of 937 Watts Power Regulation and Control –6 Auxiliary Power Regulators. 2 per Solar Cell –1 Battery Charge/Discharge Regulator per battery –ON Semiconductor LM350 Positive Voltage Regulators –STM Microelectronix ST0269 Digital Signal/Microprocessor –Crydom CMX60D10 Solid State Relays

Daedalus Thermal Passive Systems Paints- White and Black MLI Blankets –15 Layers, Betacloth, Aluminized Kapton Thermal Switches –Diaphragm Thin Plate Switch High Conductance Cold Plate Active Systems Solid-State Controlled Heaters Variable Radioisotope Heater Units –50 Units Provide about 50 W of Heat Variable Conductance Heat Pipes –Aluminum with Ammonia Working Fluid

GN&C Provides Completely Autonomous Landing sequence Very Precise landing location Landing location determined before launch Hazard Avoidance Objective: To deliver Daedalus from 5km altitude safely and accurately to the lunar surface

Daedalus Communications Earth Receiver and Transmitter Daedalus Lunar Penetrators LRO Penetrators to LRO using UHF Data Rate: 2 Kbps LRO to Earth using Ka-band Data Rate: 100 Mbps Daedalus to LRO using Ka-Band Data Rate: 100 Mbps View Time: 1 Hour per Day (approx)

Daedalus Structures To simulate loads experienced at landing a 8200 Newton load was applied to the foot of the leg assembly. These loads were then transferred to the chassis Results indicate the minimum Factor of Safety is 1.15

Daedalus Structures To simulate loads experienced at takeoff a Newton load was applied to the payload adapter ring Results indicate the minimum Factor of Safety is 1.3

Daedalus Performance Figures of MeritGoalDaedalus Number of surface objectives accomplished 15 Samples in permanent dark and 5 samples in lighted terrain 16 Samples in permanent dark and 6 samples in lighted terrain Percentage of mass allocated to payload Higher is better40% of Dry Mass Ratio of objectives (SMD to ESMD) validation 2 to to 1 Efficiency of getting data in stakeholders hands vs. capability of mission Higher is better83.5 % Percentage of mass allocated to power system Lower is better14% of Dry Mass Ratio of off-the-shelf hardware to new development hardware Higher is better1.67 to 1

Daedalus Vision LCS (2011) Proposed LPRP Timeline Using Daedalus LCROSS (2008) LRO (2008) Daedalus I (2012) Daedalus II (2014)

Daedalus Vision Daedalus I Mission to Shackleton Crater Lunar South Pole Reconnaissance achieved by LPES Single Sight Science Conducted Daedalus II Return Mission to Shackleton Crater Further Investigation based on LPES findings Robotic Rover and Sample Return Vehicle Capability

Daedalus Vision Provide a basic, yet powerful and adaptable Lunar Exploration Transportation Build upon the design practices and valuable data collected Evolve the Daedalus to accomplish each mission Provide a Low-Cost Solution for LPRP This is the Vision of Daedalus…. and the Mission of LunaTech

Questions

Thermal Backup 1

Thermal Backup 2

Thermal Backup 3

Thermal Backup 4

Thermal Backup 5

Thermal Backup 6