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Lunar Network Satellite-High Rate (LNS-HR)

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Lunar Network Satellite-High Rate (LNS-HR) NASA/TM—2012-217139 CD–2008–29 COMPASS Final Report: Lunar Network Satellite-High Rate (LNS-HR) Steven R. Oleson and Melissa L. McGuire Glenn Research Center, Cleveland, Ohio July 2012 NASA STI Program . in Profile Since its founding, NASA has been dedicated to the • CONFERENCE PUBLICATION. Collected advancement of aeronautics and space science. The papers from scientific and technical NASA Scientific and Technical Information (STI) conferences, symposia, seminars, or other program plays a key part in helping NASA maintain meetings sponsored or cosponsored by NASA. this important role. • SPECIAL PUBLICATION. Scientific, The NASA STI Program operates under the auspices technical, or historical information from of the Agency Chief Information Officer. It collects, NASA programs, projects, and missions, often organizes, provides for archiving, and disseminates concerned with subjects having substantial NASA’s STI. 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NASA/TM—2012-217139 CD–2008–29 COMPASS Final Report: Lunar Network Satellite-High Rate (LNS-HR) Steven R. Oleson and Melissa L. McGuire Glenn Research Center, Cleveland, Ohio National Aeronautics and Space Administration Glenn Research Center Cleveland, Ohio 44135 July 2012 Acknowledgments The authors would like to thank the COMPASS Team members: Les Balkanyi, Laura Burke, Tony Colozza, Jon Drexler, Doug Fiehler, Josh Freeh, John Gyekenyesi, Joe Hemminger, Eric Knoblock, Tom Krivanek, Mike Martini, Nelson Morales, Tom Packard, Tom Parkey, Mark Poljak, Carl Sandifer, Tim Sarver-Verhey, Anita Tenteris, Joe Warner, Glenn Williams, and Jeff Woytach. This report is a formal draft or working paper, intended to solicit comments and ideas from a technical peer group. This report contains preliminary findings, subject to revision as analysis proceeds. Trade names and trademarks are used in this report for identification only. Their usage does not constitute an official endorsement, either expressed or implied, by the National Aeronautics and Space Administration. Level of Review: This material has been technically reviewed by technical management. Available from NASA Center for Aerospace Information National Technical Information Service 7115 Standard Drive 5301 Shawnee Road Hanover, MD 21076–1320 Alexandria, VA 22312 Available electronically at http://www.sti.nasa.gov Contents 1.0 Executive Summary.............................................................................................................................. 1 1.1 Frozen Orbit Case ........................................................................................................................ 1 1.2 Lagrange Orbit Case .................................................................................................................... 1 2.0 Study Background and Assumptions .................................................................................................... 4 2.1 Introduction ................................................................................................................................. 4 2.2 Assumptions ................................................................................................................................ 5 2.2.1 Coverage Assumptions/Requirements ............................................................................. 5 2.2.2 Communications Assumptions/Requirements ................................................................. 6 2.2.3 Earth Based Telescopes for Laser Optical Trunk ............................................................. 7 2.2.4 Derived Requirements ...................................................................................................... 7 2.3 Similar Past Missions .................................................................................................................. 8 2.4 Margin and Growth Policy .......................................................................................................... 9 2.4.1 Definition of Terms .......................................................................................................... 9 2.4.2 Definition of Mass Growth Allowance (MGA) ............................................................... 9 2.4.3 From the AIAA Standard—Terms and Definitions as applied to Dry Mass. ................ 11 2.4.4 Launch Margin ............................................................................................................... 12 2.4.5 Power Growth ................................................................................................................ 12 2.5 Mission Description—Frozen Orbits ......................................................................................... 12 2.5.1 Frozen Orbit Mission Analysis Assumptions ................................................................ 13 2.5.2 Frozen Orbit Mission Analysis Analytic Methods ......................................................... 13 2.5.3 Frozen Orbit Mission Analysis Event Timeline ............................................................. 16 2.5.1 Frozen Orbit Delta V Schedule ...................................................................................... 16 2.5.2 Frozen Orbit Mission Trajectory and Orbit Details ....................................................... 17 2.5.3 Frozen Orbit Details ....................................................................................................... 17 2.5.4 Selected Design Frozen Orbit ........................................................................................ 18 2.5.5 Frozen Orbit Lunar Coverage ........................................................................................ 18 2.5.6 Frozen Orbit Solar Coverage ......................................................................................... 23 2.6 Mission Description—Earth/Moon Lagrange Orbits................................................................. 24 2.6.1 Earth/Moon Lagrange Orbit Mission Analysis Assumptions ........................................ 24 2.6.2 Earth/Moon Lagrange Orbit Mission Analysis Analytic Methods ................................ 24 2.6.3 Earth/Moon Lagrange Orbit Mission Analysis Event Timeline .................................... 25 2.6.4 Earth/Moon Lagrange Orbit Delta V Assumptions........................................................ 25 2.6.5 Earth/Moon Lagrange Orbit Mission Trajectory Details ............................................... 26 2.6.6 Earth/Moon Lagrange Orbit Lunar Coverage ................................................................ 26 2.7 Launch Vehicle (LV) Details ..................................................................................................... 26 2.7.1 LV Data and Trades ....................................................................................................... 26 2.7.2 LV Performance and Cost .............................................................................................. 26 2.7.3 LV Details—Frozen Orbit Constellation ....................................................................... 27 2.7.4 LV Details—Lagrange Orbit Constellation ................................................................... 28 2.8 S/C Pointing ............................................................................................................................... 28 2.8.1 Frozen Orbit S/C Pointing .............................................................................................. 28 2.8.2 Lagrange Orbit S/C Pointing .......................................................................................... 33 2.9 System Design Trade Space .....................................................................................................
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