CONTENTS Section Page 1 INTRODUCTION ...... 1 1.1 Study Approach ................................ 1 1.2 Study Ground Rules and Assumptions .... 2 1.3 Study Results and Conclusions ............... 5 2 CONCEPT DEFINITION .................................... 11 2.1 Satellite Configuration ....................... 11 2.2 Power Conversion ............................... 32 2.3 Power Transmission ........................... 62 2.4 Attitude Control/Stationkeeping ............... 88 3 ORBITAL OPERATIONS .................................... 115 3.1 Structures Fabrication ....................... 115 3.2 SPS Construction Jig/Base........................ 118 3.3 Mirror and Solar Cell Blanket Fabrication Facilities...........................................122 3.4 Rotary Joint, Slip Ring Structure, and Electrical Track Buildup ...................... 124 3.5 Microwave Antenna Trunnion Structure Buildup . 126 3.6 Microwave Antenna Assembly .................... 126 3.7 Installation of Electronic Elements and Phased- Array Antenna.......................................132 3.8 Maintenance Facilities . . . . . . . 136 3.9 Crew Sizes and Assembly Sequence .... 138 4 TRANSPORTATION ........................................ 139 4.1 Earth Launch Vehicle ......................... 139 4.2 Orbital Transfer ............................... 144 4.3 Crew and Resupply Module . 149 4.4 Payload Integration ........................... 151 5 PROGAMMATICS ............................................ 155 5.1 Program Development ........................... 155 5.2 Economic Comparisons ........................ 157 5.3 Technology Advancement ........................ 174 6 SPECIAL STUDIES ........................................ 193 6.1 Nuclear Radiation at Geosynchronous Orbit . . 193 6.2 Electrical Spacecraft Charging at Geosynchronous Orbit...............................................200 6.3 SPS Microwave Radiations . . . . . . 205
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