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BNA_G4_Space Industry, The Biggest Difference: Propulsive Maneuvering…

- - - - Confirming The National Science and Technology Council as the regulatory authority for space activities.
      - The establishment of national launch sites is under the responsibility of NSTC and Technology.
      - In implementing national space policies and plans, the government shall entrust dedicated legal entities with the relevant tasks.
  - - - Commercial Space Launch Act (USA)
        
        Outer Space and High-altitude Activities Bill (New Zealand)
    - - Canadian Space Agency Act (Canada)
        
        Law on the Establishment of the Italian Space agency (Italy)
    - - 宇宙基本法(Japan)
- - - - deal with the problem that people can' t get signal in remote areas
        
        67%of satellite network are available for network
        
        most people get their signal from submarine cable
        
        spaceX AST SpaceMobile
        
        launch for new satellite
        
        bluewalker 3
        
        6G
        
        popularize the satellite
  - - - any block will make it disconnect
        
        bulid up satellites system
        
        match with satellite network
        
        offer astronomical information
        
        Radio Occultation
- - - - Satellite communication may face higher signal transmission latency.
    - - The cost of launching and maintaining satellite networks is relatively high.
    - - Adverse weather conditions, such as storms or cloudy days, may cause signal attenuation, affecting communication quality.
  - - - Satellite networks can provide global coverage.
    - - Satellites are not restricted by geographic terrain, and this can make sure challenging terrains are able to use the internet.
    - - Satellite networks can support mobile devices, providing continuous communication connectivity.
- - - - close to Earth’s surface(could be as low as 160 km above Earth)
        
        LEO satellites do not always have to follow a particular path around Earth in the same way
        
        their plane can be tilted.
      - apploication
        
        communication devices
        
        Iridium phone systems utilize the services of LEO.
        
        monitor an earth
        
        Remote Industrial Business
        
        provide global coverage
      - Who makes LEO sallites :question:
        
        built by unversity
        
        student in aerospace built first units to test and lunch into space
    - - These satellites revolve in the same direction the Earth rotates -- west to east.
        
        its position as needed to keep its orbit at the same speed as the Earth's rotation and remain in the same position above the Earth's equator.
      - application
        
        telecommunication
        
        :tv: television
        
        Navigation
        
        GPS and other navigation systems
      - Advantages
        
        Variety of services
        
        It can support voice-, data- and video-based services for their designated region.
        
        Reliability
        
        These satellites are known for their predictable performance. (But high cost)