smallsats to the moon - utah state university
TRANSCRIPT
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Smallsats to the Moon
The ‘picks and shovels’ presentation
Adam M. BakerAndy Phipps, Phil Davies, Xavier Alabart, Martin Sweeting
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Overview
Background to SSTL, UK & international interests in the Moon
UK interests: Space Exploration Working Group
Economics
- Key UK stakeholder requirements,
SSTL’s recent study work: MoonLITE and MoonRaker- MoonLITE in some more detail
Potential commercial lunar services
Communications relay
Current UK & SSTL activities
Magnolia
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Why are we going to the Moon?
Growing global interest in a sustainable return to the Moon, for exploration, science and exploitation
The UK wishes to play a key role in this international effort
SSTL has been studying how to apply its low cost approach to Lunar exploration for many years
The time for study is over
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SSTL Heritage: Hardware
GIOVE-A
Advanced platformsTopSat
Beijing-1
• Science
• Navigation
• Communications
• Techdemo
Moving beyond LEO for
Advanced miniaturised avionicsAdvanced studies
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Why is it worth doing this?
>12 lunar missions in 10 years, most landing on the surface
Missions have data relay & storage, navigation, health monitoring requirements
ESA: The Future of European Space ExplorationNation Mission Date Lander / orbiter Japan Selene 2007 Orbiter India Chandrayaan-1 2008 Orbiter US LRO (RLEP1) 2008 Orbiter US LCROSS 2008 Lander (impactor) China Change’e-1 2008 Orbiter Japan Lunar-A 2010 Lander (penetrators) US Lunar Precursor Robotic Pathfinder
(LPRP) 2010 Lander
US International Lunar Observatory 2010? Lander Germany Stuttgart IFR Lunar microsat 2010 Orbiter China Change’e-2 2013 Lander + Rover Japan Selene-2 2013 Lander + Rover + Impactor Russia LunaGlob 2013-2015 Landers ESA Aurora MSR precursor 2013+ Lander, possibly orbiter US Manned landings (several) 2018+ Landers
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UK interests: SEWG
The UK Space Exploration Working Group, formed Nov 2006, to:
• Review current global plans for space exploration;
• Assess whether or not a rationale exists for UK participation;
• Provide advice to BNSC as to which areas the UK should focus on if it wishes to engage in such activities.
Crafting a comprehensive report due for publication shortly, covering:
• International efforts
• The science case for space exploration
• Technology & knowledge transfer benefits from space exploration
• Commercial considerations
• Outreach, education and societal impacts
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Earlier this year…
March April
JOINT STATEMENT OF INTENT FOR COOPERATION IN THE FIELD OF SPACE EXPLORATION BY THE
UNITED STATES NASA AND THE UNITED KINGDOM BNSC
“…cooperative efforts may range from the exchange of information related to research and development to actual hardware contributions for particular missions…”
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SSTL – recent study workLow cost lunar exploration options, carried out in 2006
MoonLITEPolar orbiter for communication, navigation orbital remote sensing
Multiple micro-impactors, deployed to far-side and near-side, conducting in-situ geophysics (heat flow, seismometry)
Launch in 2010/11
MoonRakerSmall soft lander for northern near-side geophysics & geochemistry (in situ dating)
Micro-rover for surface mobility (<1 km range) and multiple site sampling
Launch in 2013
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MoonLITE Orbiter
Requirements• Low cost, heritage Launch Vehicle
ideally PSLV
• Payload 4 x UK Developed ImpactorsCommunications relay (IP option inc router) ,
navigation signal generator demo.
• Heritage baseline for mission assuranceSSTL GIOVE-A bus
OBC695 rad-tol. flight computer (NASA / Chandrayaan-1)
PA developed for 7yr+ commercial LEO missions
Structure 131.0Comms 8.4Power 28.7Solar Panels 15.5AOCS 44.1Propulsion 71.5OBDH 4.3Environmental 16.6Harness 30.0Payload 162.8System Margin (platform) 35.0Total (Dry) 547.9Propellant (Transfer,LOI,OM) 279.1AOCS Propellant 10Propellant (Total) 289.1Total (Launch) 837.0
Challenges to the low cost approach:>1kms-1 deltaV (LOI and stationkeeping)
(low cost bipropellant v. monopropellant hydrazine)
Lightweight, mass efficient structure
Straightforward Assembly and Integration
Requirement for Ranging transponders
LOI and Lunar orbit Operations in keeping with SSTL low cost automated approach
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The economic factor
UK Space Strategy 2003-2006, strategic objectives
• Astronomy, planetary and environmental sciences• Increased productivity by using space in government,
science & commerce• Develop innovative space technologies & systems, to
improve the quality of life
∴ Economic return from any UK government investment is a REQUIREMENT
1. Collaboration2. Explore potential commercial returns 3. Enabling key science4. Team UK effort5. Education, outreach
So how do we justify exploration, and a UK mission?
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Potential Services
Telecommunications Relay System
StorageSystem
Health MonitoringSystem Subsystems
Data relayMoon / Earth
Data relayMoon / Moon
EmergencyBackup
ExternalHardDisk
NavigationInformation
Spaceweatherwarning
‘Non-mission products’supply to 3rd party
OBC695 for NASA / Chandrayaan-1
Short Term (<10 yrs)
Habitat sub-
systems
Logistics resupply
(Lunar) in-orbit
servicing
New Materials
Propellant manufactureMining
Scientific instruments, value added
products
e.g. solar power
beaming
Inter-activity
Support Space
Tourism
HabitatIn Orbit ServicesExploitation
Delivery &
retrievalEnergyMedia
Long Term
*List of Services and Products not exhaustive, from NASA Vision commercialization opportunities and other studies available.
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Mechanisms?
Landers will all require data relay:-Low rate 0.01 – 1.5Mbps links for critical data
High rate 100-150Mbps links, science data, HD video
No backup data relay on NASA missions (unlike Mars)
Geolocation of surface assets for tracking desirable
Revenue streams for‘Pay as you transmit’ : Backup data relay
Temporary data storage
UK licensing of the standardSale of services e.g. secure data links, navigation for
safety of life, broadcasting
Opportunity!
Bring commerce into the UK space (exploration) strategyBusiness conceivably offering smooth(ish) growthPotential for a consortium of companies to develop a service provider modelBroad (international) market: Agencies and non-govtExtensive UK experience in Public / Private Financing…and…Stimulate UK economic growth Enhance international cooperationGenerate scientific discoveriesDevelop the workforce of tomorrow
Backup for lunar orbiters and essential support for lunar landers, as well as future international lunar base
Communications relay
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Current SSTL & UK activities
UK SEWG report to be published (September 2007)
⇓UK Space Strategy 2007-2010 (late 2007)
⇓UK lunar impactor / penetrator consortium
(4 impactors + EM by 2010)UK National lunar mission
(launch in 2011)
⇑SSTL currently working on
• MSR precursor mission design with ThalesAlenia Space• Mission elements for ESA exploration architecture
Magnolia
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Magnolia
SSTL has been awarded a contract for the study phase of an international collaborative lunar orbiter mission, Magnolia.
The Magnolia contract is between Mississippi State University (MSU) and SSTL, under a NASA cooperative agreement.
The first contract phase will run for 9-months, culminating in a preliminary mission design.
• The contract includes a package of training by SSTL and the University of Surrey for MSU and NASA Stennis Space Center staff
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…recap…
Background to SSTL and the UK interest in the Moon
UK interests and stakeholder requirements- Economics and Exploration
SSTL’s recent study work: MoonLITE and MoonRaker- MoonLITE in some more detail
Potential commercial lunar services
Commercial benefits of comm relay
Current UK & SSTL activities, inc. Magnolia
What about the ‘metric’ ?- Smallsats: 1 piece of a larger system- Cost effective way to support exploration
(the ‘techdemo’ argument)- Scientific, business case, educational value
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Thank you…
For further information contactDr. Adam M. BakerSurrey Satellite Technology Ltd.Tycho House, Surrey Research
Park, Guildford, Surrey, GU2 7YE, United Kingdom
Tel: +44 1483 803803, Fax: +44 1483 803804
Email: [email protected]
Web: www.sstl.co.uk