| MarsNet: A Mars Orbiting Communications & Navigation Satellite Constellation (2004) | |||||||||
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| MarsNet Mars Orbiting Communications Navigation Satellite Constellation David Bell bell zorba ipl nasa gov Robert Cesarone Robert Cesarone iPl nasa gov Todd Ely tely maill nasa Chad Edwards Charles Edwards ipl nasa gov Steve Townes stephen townes ipl nasa gov Oak Grove Pasadena NASA Jet Propulsion Laboratory Abstract Mars has become the focus unprecedented series missions spanning many years involving numerous nations and evolving from robotic tohuman exploration Elements will dispersed widely longitude and latitude over the surface Mars Some surface elements like rovers balloons and airplanes will mobile Other elements like sample canisters will orbit Mars Finally manned sites will require broadband connectivity earth The challenge has been develop architecture and technology roadmap that will anticipate the needs this evolving mission set NASA Jet Propulsion Laboratory has begun development this architecture and its associated technologies The architectural system design presented along with the resulting telecommunications and navigation performance provides Mars situ elements TABLEOF CONTENTS INTRODUCTION ARCHITECTURAL OVERVIEW MARS MISSIONREQUIREMENTS DESIGN GOALS AND PERFORMANCE METRICS CONSTELLATIONCOMPARISONS CONCLUSIONS INTRODUCTION Western civilization expansion into and throughout the Americas was preceded exploratory missions like those Columbus and the Lewis and Clark party These exploratory missions were then followed early outposts and eventually waves coloniza | |||||||||
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