Moon & Mars Orbiting Spinning Tether Transport - Tethers Unlimited

3 System Requirements3.1 System Performance3.1.1 Payload MassThe nominal payload mass shall be 5000 kg.3.1.2 Nominal Pickup OrbitThe system shall pick up nominal payloads from an equatorial circular orbit at 300 km altitude above theEarth.3.1.3 Nominal Release OrbitThe system shall release nominal payloads into Geosynchronous Transfer Orbit (GTO).The change in velocity (delta-v) from the nominal pickup orbit to GTO is 2460 m/s.3.1.4 Release Orbit Insertion ErrorThe release orbit insertion error shall be no greater than the release orbit insertion error of Ariane 5 or Delta4, whichever is smaller, in each of the seven orbital elements.3.1.5 Payload Interfaces & AccommodationPayload interfaces and accommodations shall be compatible with any payload designed to be compatiblewith Ariane 5 or Delta 4.3.1.6 Payload EnvironmentThe payload environment shall be compatible with any payload designed to be compatible with Ariane 5 orDelta 4.3.1.7 Turnaround TimeThe maximum system turnaround time between deliveries of nominal payloads shall be 30 days.3.2 System Durability, Reliability, Maintainability, and Safety3.2.1 Design LifeThe design life of the system shall be 10 years with 99% confidence.This requirement does not mean that no system elements or components will be expended, repaired, orreplaced in 10 years. For example, the Payload Accommodation Assembly (PAA) for GTO payloads maybe expendable.3.2.1.1 Self-entanglementThe system shall avoid entanglement of the tether with any element of the system.3.2.1.1.1 Tether Dynamics