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Active Sites Directory is a free directory which covers a large variety of sites organized by category. Browse thousands of web sites that are more focused on one particular aspect of Science, Technology, Space, Satellites, Navigation with just the click of your mouse.

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Top: Science: Technology: Space: Satellites: Navigation:

    http://www.cenc.org.cn/en/   » China-Europe GNSS - Provides information on the Chinese cooperation in European global navigation space systems.

    http://www.esa.int/esaNA/index.html   » The European Space Agency: Satellite Navigation - Includes overview of satellite navigation and presentation of the European satellite navigation systems Galileo and EGNOS.

    http://ec.europa.eu/dgs/energy_transport/galileo/index_en.htm   » GALILEO - Features overview of the GALILEO global satellite navigation system by the European Commission. Includes functions, performances and utilization areas.

    http://www.galileoju.com/   » Galileo Joint Undertaking - Offers general system information and industry related material by the consortium building the system.

    http://leonardo.jpl.nasa.gov/msl/Programs/gps.html   » Global Positioning System - Provides overview of the GPS program and launches.

    http://www.gpsworld.com/gpsworld/   » GPS World - Magazine offering on-line news and updated reference information in space and ground GNSS systems.

    http://pnt.gov/   » National Space-Based Positioning, Navigation, and Timing (PNT) - Provides news and facts from the U.S. government board that manages the Global Position System (GPS).

    http://gps.losangeles.af.mil/   » NAVSTAR GPS Joint Program Office - United States joint-military-service, multi-national organization responsible for the global positioning constellation, operational control segment, and user equipment. Technical and programmatic information.

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