Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

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Appendix L: Tether Boost Facility Design Final Report1 ScopeThe MMOSTT system is an in-space transportation system that incorporates an Earthorbitingfacility with a spinning tether as a primary element. This document describesthe top-level system requirements for a tether boost facility in low Earth orbit. Therequirements defined here are for the objective system, that is, for a facility that is partof an operational full-scale transportation system that boosts payloads from low Earthorbit to higher orbits or Earth escape. Requirements for sub-scale or demonstrationsystems may be described at a future date in other documents. Requirements for tetherfacilities in higher Earth orbits or in orbits about other planetary bodies may bedescribed at a future date in other documents.The tether facility consists of the tether, a control station, and a grapple assembly. Thecontrol station controls the tether and tether dynamics. The grapple assembly capturesand releases payloads.A payload is any object that will be accelerated or decelerated toward a destination inspace. The transportation system includes a payload accommodation assembly toprovide the interface between the payload and the grapple assembly on the tetherfacility.This document describes requirements including a nominal payload mass and anominal release orbit. It is envisioned that the tether facility will be able to grapplepayloads with greater or lesser mass than nominal and release them after impartingless or more delta-v, respectively, than nominal. However, no requirements areimposed on the delta-v that must be imparted to non-nominal payloads, except that thesystem can deliver a smaller payload to the same release orbit as a nominal payload.The tether facility is envisioned to accommodate modular assembly and growth, so itscapacity may be expanded to handle larger payloads if a need arises.L-41
Appendix L: Tether Boost Facility Design Final Report2 ReferencesThis section lists documents to which the text of this document refers.Ariane 5 User’s GuideDelta IV Payload Planners Guide, October 1999Cislunar Tether Transport System, Phase One Final Report, May 30, 1999, TethersUnlimited, Inc., NIAC Contract 07600-011.Cislunar Tether Transport System, Phase Two Proposal, May 28, 1999, in response toNIAC CP99-01.L-42
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Tethers Unlimited, Inc.MMOSTT Final
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NIAC Funded Tether Research• Moon
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Electrodynamic Reboost• Power sup
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Cislunar Tether Transport System•
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MXER Tethers Included in NASA’sII
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5mt Payload Tether Boost Facilityfo
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LEOGTO Boost Facility• Initial Fa
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Tether Boost FacilityControl Statio
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LEOGTO Boost Facility• TetherSim
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Rendezvous• Rapid AR&C Capability
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Proposed RETRIEVE TetherExperiment
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µTORQUE on Delta IV• Delta-IV Se
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Opportunities for NASATechnology De
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AIAA 2000-3842COMMERCIAL DEVELOPMEN
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--Commercial Tether Transport AIAA
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-Commercial Tether Transport AIAA 2
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Commercial Tether Transport AIAA 20
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Commercial Tether Transport AIAA 20
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Momentum Exchange/Electrodynamic Re
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DESIGN AND SIMULATION OF A TETHER B
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Tether Boost Facility Design AIAA 2
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Tethers Unlimited, Inc.Cislunar Tet
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Interim Report Outline- Configurati
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Mission Definition¥ Payload Capaci
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Baseline Control Station DetailsTET
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Baseline Grapple AssemblyCAPTURES A
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LEO Facility System ArchitectureGRA
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Payload Adapter Assembly Subsystems
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Potential Reeling FunctionsReeling
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LEO Control Station Weights16
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Payload Adapter Assembly Weights18
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Tether Boost FacilityRequired Power
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Electrical Propulsion Voltage´ Spe
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Potential Reeling FunctionsReeling
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Preliminary Reeling AnalysisθθAss
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Page 110 and 111: Table of Contents1 Scope ..........
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Cislunar Tether Transport System•
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Rapid Earth-Mars Transport• Reusa
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EarthMars Launch Windows• MMOSTT
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Incremental Development Path1. TORQ
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LEOGTO Boost Facility• TetherSim
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Tether Boost FacilityControl Statio
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Modular Design• Design Components
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Payload Accommodation AssemblyConfi
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Electrodynamic Thrusting• Drive c
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Tether Facility Reboost• Use Elec
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Rendezvous• Rapid Automated Rende
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Rendezvous Method: Preparation• P
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Development Issues• Automated Ren
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Potential Flight Experiments• Hig
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Opportunities for NASATechnology De
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Acknowledgements• Boeing/RSS - Jo
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IAF-99-A.5.10RAPID INTERPLANETARY T
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Rapid Interplanetary Tether Transpo
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IAF-00-S.6.04TETHER SYSTEMS FOR SAT
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IAF-00-S.6.04controlled very precis
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IAF-00-S.6.04Perigee Altitude (km)3
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IAF-00-S.6.04The LEO⇒GTO Tether B
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IAF-00-S.6.04AcknowledgmentsThis re
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Tethers Unlimited, Inc.Appendix K:
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Tethers Unlimited, Inc.at a rate of
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Tethers Unlimited, Inc.Appendix L -
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Tethers Unlimited, Inc.Appendixm M:
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Appendix N. MXER Tether for Deployi
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Electrodynamic Thrustingto Reboost
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100000 95000 90000 85000 80000 7500
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Momentum Exchange/Electrodynamic Re
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NOMENCLATURESymbol MeaningA payload
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DepartureangleA = 1.5π - (ω + u
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Tether material has a "characterist
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Rendezvous of Grapple with PayloadT
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adius vector to the new center of m
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days from payload pickup at one pla
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"JupiterandBeyond"Tether cut CUT:<
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Tethers Unlimited, Inc.Appendix Q:
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Tethers Unlimited, Inc.Appendix R:
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