Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

Appendix F: Tether Boost Facility Design Final ReportRequirement Name Value Phase Two DesignImpactTechnologyDevelopment ImpactPayload Mass 5000 kg at IOC Facility mass, tether N/AmassPickup orbit 300 km equatorial Facility orbit, atomic Erosion controloxygen, orbital decayrateRelease orbit GTO Facility mass, tethermassDemonstrate releasespeedRelease insertion < Delta IV/Ariane 5 N/A DemonstrateerrorPayload interfaces* Match Delta & Ariane N/A N/APayload environment < Delta IV/Ariane 5 PAA, tether length N/ATurnaround time 30 days Power system sizing Demonstrate highpower ED thrustDesign life 10 years minimum PV array life, batterydepth of discharge,Hoytether, modularityErosion control,impact survivabilityunder full tensionMaximum lifetime*Repairability*Evolvability*Disposal*Fail Operational*Two-Failure Safety*Collision avoidanceOperational orbitlifetimePayload pickupreliabilityCommunicate missionreadiness*Communicate status*Produce automatedmission profile*Launch on existinglaunch vehicle*Some capability afterfirst launch package*Not constrained byconsumables andexpendablesMinimal use ofconsumables; on-orbitrestocking whereneededAll elementsrepairable on orbitN/AISS experience willincrease repair TRL10 x payload mass Modularitygrowth beyond IOCSafe disposal of all N/Asystem elementsOperate after any one Redundancy levelscredible failureSafe after any two Redundancy levelscredible failures100% of tracked N/ADemonstrate timelyspacecraftavoidance maneuvers15 days Orbit constraints Verify ED thrust canrise from high-dragorbit99% N/A Demonstrate2500 kg to GTOTable 2.2. Top-Level System Requirements for Tether Boost FacilityF-9