8. Appendix Material 8.1. Glossary of Acronyms ACO Advanced Concepts Office AEC Atomic Energy Commission AIST Affordable In-Space Transportation DoD Department of Defense DOE Department of Energy EE/FSU Eastern Europe/Former Soviet Union EIA Energy Information Administration (part of DOE) EPRI Electric Power Research Institute ESPAM Electronically Steerable Phased Array Module ETO Earth to Orbit FEL Free Electron Laser FOV Field Of View FY Fiscal Year GDP Gross Domestic Product GEO Geostationary Orbit HRST Highly Reusable Space Transportation HRV Highly Reusable Vehicle HTSC High Temperature Super Conductor IAAM Integrated Architecture Assessment Model IOC Initial Operating Capability IRR Internal Rate of Return ISAS Institute for Space and Astronautical Science ISM Industrial, Scientific & Medical (Radio frequency spectrum allocation) JPL Jet Propulsion Laboratory LCC Life Cycle Cost LEO Low Earth Orbit LeRC Lewis Research Center MDA Magnetron Directional Amplifier MEO Middle Earth Orbit
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