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COMPASS Final Report: Lunar Communications Terminal (LCT)The Lunar Communications Terminal (LCT) COllaborative Modeling and Parametric Assessment of Space Systems (COMPASS) session designed a terminal to provide communications between lunar South Pole assets, communications relay to/from these assets through an orbiting Lunar Relay Satellite (LRS) and navigation support. The design included a complete master equipment list, power requirement list, configuration design, and brief risk assessment and cost analysis. The Terminal consists of a pallet containing the communications and avionics equipment, surrounded by the thermal control system (radiator), an attached, deployable 10-m tower, upon which were mounted locally broadcasting and receiving modems and a deployable 1 m diameter Ka/S band dish which provides relay communications with the lunar relay satellites and, as a backup, Earth when it is in view. All power was assumed to come from the lunar outpost Habitat. Three LCT design options were explored: a stand-alone LCT servicing the manned outpost, an integrated LCT (into the Habitat or Lunar Lander), and a mini-LCT which provides a reduced level of communication for primarily robotic areas dealing as in situ resource utilization (ISRU) and remote science. Where possible all the designs assumed single fault tolerance. Significant mass savings were found when integrating the LCT into the Habitat or Lander but increases in costs occurred depending upon the level of man rating required for such designs.
Document ID
20110004245
Document Type
Technical Memorandum (TM)
Authors
Oleson, Steven R. (NASA Glenn Research Center Cleveland, OH, United States)
McGuire, Melissa L. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 25, 2013
Publication Date
December 1, 2010
Subject Category
Space Communications, Spacecraft Communications, Command and Tracking
Report/Patent Number
CD-2007-11
NASA/TM-2010-216236
E-17223
Funding Number(s)
WBS: WBS 986249.01.11.20.22.03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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