Geostationary platform systems concepts definition study. Volume 2: Technical, book 1
Abstract
The initial selection and definition of operational geostationary platform concepts is discussed. Candidate geostationary platform missions and payloads were identified from COMSAT, Aerospace, and NASA studies. These missions and payloads were cataloged; classified with to communications, military, or scientific uses; screened for application and compatibility with geostationary platforms; and analyzed to identify platform requirements. Two platform locations were then selected (Western Hemisphere - 110 deg W, and Atlantic - 15 deg W), and payloads allocated based on nominal and high traffic models. Trade studies were performed leading to recommendation of selected concepts. Of 30 Orbit Transfer Vehicle (0TV) configuration and operating mode options indentified, 18 viable candidates compatible with the operational geostationary platform missions were selected for analysis. Each was considered using four platform operational modes - 8 or 16 year life, and serviced or nonserviced, providing a total of 72 OTV/platform-mode options. For final trade study concept selection, a cost program was developed considering payload and platform costs and weight; transportation unit and total costs for the shuttle and OTV; and operational costs such as assembly or construction time, mating time, and loiter time. Servicing costs were added for final analysis and recommended selection.
- Publication:
-
Final Report General Dynamics/Convair
- Pub Date:
- June 1980
- Bibcode:
- 1980gedy.reptR.....
- Keywords:
-
- Geosynchronous Orbits;
- Large Space Structures;
- Space Platforms;
- Synchronous Satellites;
- Communication Equipment;
- Economic Factors;
- Logistics;
- Mission Planning;
- Orbit Transfer Vehicles;
- Payloads;
- Space Shuttles;
- Spacecraft Modules;
- Technology Assessment;
- Launch Vehicles and Space Vehicles