| ABARIS | Advanced Broadcast Architecture for Retail Internet Services
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| ARTES | Advanced Research in Telecommunications
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| ASTOS | Association of Specialist Technical Organisations for Space
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| ASTRA | Association in Scotland to Research into Astronautics
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| BARSC | British Association of Specialist Technical Organisations for Space
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| BIS | British Interplanetary Society
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| BMSC | Bristol Medical Simulation Centre
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| BNSC | British National Space Centre
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| CCLRC | Council for the Central Laboratory of the Research Councils
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| CNES | French Space Agency
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| COMSAT | Communications Satellite Corporation
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| CRYOSTAT | EO Mission to determine variations in the cryosphere
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| DERA | Defence Evaluation and Research Agency
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| DSCS | Defence Satellite Communication System (US)
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| EGNOS | European Geostationary Navigation Overlay System
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| ELDO | European Launcher Development Organisation
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| ELV | Expendable Launch Vehicle
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| EO | Earth Observation
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| ESA | European Space Agency
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| ESTEC | European Space Technology Centre
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| EUMETSTAT | European Meteorological Satellite Organisation
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| EUTELSAT | European Telecommunications Satellite Organisation
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| FESTIP | Future European Space Transportation Investigations Programme
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| FIRST | Far-Infrared Space Telescope
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| FTLP | Future Launch Technologies Programme
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| GALA | Galileo overall architecture study
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| GANDER | Global Altimeter Network Designed to Evaluate Risk
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| GEMINUS | Galileo European Multimodal Integrated Navigation User Service
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| GLONASS | Global Navigation Satellite System (Russian)
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| GNSS | Global Navigation Satellite System
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| GOS | Global Observing System
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| GPS | Global Positioning System
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| GVC | Galileo Vehicle Company
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| HELIOS | Military reconnaissance satellite
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| HOTOL | Horizontal Take-Off and Landing
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| INMARSAT | International Marine and Aeronautical Communications Organisation
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| INTEGRAL | International Gamma-Ray Astrophysics Laboratory
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| INTELSAT | International Telecommunications Satellite Organisation
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| ISO | Infra-red Solar Observatory
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| ISS | International Space Station
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| LEO | Low Earth orbit
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| MEO | Medium Earth orbit
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| MOSAIC | Micro Satellite Applications in Collaboration Programme
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| NASA | National Aeronautics and Space Administration (US)
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| NATS | UK National Air Traffic Services
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| NERC | Natural Environment Research Council
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| NOAA | National Oceanic and Atmospheric Administration (US)
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| PPARC | Particle Physics and Astronomy Research Council
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| RAS | Royal Astronomical Society
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| RLV | Reusable Launch Vehicle
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| SAGA | Standardisation Activities to Galileo
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| SAR | Synthetic Aperture Radar
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| SERC | Science and Engineering Research Council
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| SKYLON | Reusable Launch Vehicle developed by Reaction Engines Ltd
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| SKYNET | Military Communications Satellite System
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| SMART | Small Missions for Advanced Research in Technology [see ff 197]
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| SMART | Small Firms Merit Award for Research and Technology
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| SOHO | Solar and Heliospheric Observatory
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| SPUR | Support for Projects Under Research
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| SSTL | Surrey Satellites Technology Ltd
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| STRV | Space Technology Research Vehicle
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| SUPARCO | Space and Upper Atmosphere Research Commission
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| UKISC | UK Industrial Space Committee
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| XMM | X-ray Multi Mirror Mission
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