Use of the Tracking and Data Relay Satellite System (TDRSS) with Low Earth Orbiting (LEO) Satellites: A Decision Guide

摘要

With increased military interest in relatively inexpensive, mission variable 'lightsats' for proliferation and reconstitution purposes, an efficient means for information flow must be found. This information includes control of the mission satellite as well as retrieval of mission data. A possible selection to provide this channel is the Tracking and Data Relay Satellite System (TDRSS). This research was conducted to assemble the critical decision elements as a guide to prospective 'lightsat' users of TDRSS. When TDRSS is complete, orbital coverage will be at least 85%, making this an attractive option over alternatives. Greater link ranges and signal peculiarities are limiting factors in selecting this option. Issues covered TDRSS operational architecture, signal design and requirements, user spacecraft orbital considerations, link evaluation of all services for low earth orbits (LEO's), and cost and documentation requirements. A recommended decision path is provided for early determination of TDRSSS suitability to mission needs. Theses. (RH)