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    1209546

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    Nourhan Nashaat
    Satellites orbit Earth and other planets or stars to observe and study them. Some satellites take pictures of Earth and other celestial bodies to study weather, climate, and the universe. Other satellites enable communication from space by relaying signals like TV and phone calls. Satellites launch into space using powerful rockets and require careful tracking to prevent collisions during orbit. They come in various shapes and sizes but all have a power source, usually solar panels or batteries, and an antenna for communication. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.

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    1209546

    Uploaded by

    Nourhan Nashaat
    17 views15 pages
    Satellites orbit Earth and other planets or stars to observe and study them. Some satellites take pictures of Earth and other celestial bodies to study weather, climate, and the universe. Other satellites enable communication from space by relaying signals like TV and phone calls. Satellites launch into space using powerful rockets and require careful tracking to prevent collisions during orbit. They come in various shapes and sizes but all have a power source, usually solar panels or batteries, and an antenna for communication. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.

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    Satellites orbit Earth and other planets or stars to observe and study them. Some satellites take pictures of Earth and other celestial bodies to study weather, climate, and the universe. Other satellites enable communication from space by relaying signals like TV and phone calls. Satellites launch into space using powerful rockets and require careful tracking to prevent collisions during orbit. They come in various shapes and sizes but all have a power source, usually solar panels or batteries, and an antenna for communication. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    17 views15 pages

    1209546

    Uploaded by

    Nourhan Nashaat
    Satellites orbit Earth and other planets or stars to observe and study them. Some satellites take pictures of Earth and other celestial bodies to study weather, climate, and the universe. Other satellites enable communication from space by relaying signals like TV and phone calls. Satellites launch into space using powerful rockets and require careful tracking to prevent collisions during orbit. They come in various shapes and sizes but all have a power source, usually solar panels or batteries, and an antenna for communication. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.

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    © All Rights Reserved
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    Download as pptx, pdf, or txt
    of 15

    What Do We Already

    know about Satellites?


    What Is a Satellite?
    A satellite is a planet, moon or machine, which orbits (travels around) a planet or
    star. This presentation will help you learn more about the type of satellite which
    is launched into space.
    What Do Satellites Do?
    Some satellites take pictures of Earth to help predict the weather. They can also
    provide information about our climate. Satellites can measure gases in the
    atmosphere too. Some satellites take pictures of other planets or distant
    galaxies, helping scientists to understand more about our universe.

    Other satellites are used for communication. TV signals and telephone calls
    travel to a satellite, then the satellite sends them back down to different places
    around the world.

    A geostationary satellite travels from west to east,


    moving in the same direction and at the same speed
    as the Earth. Polar-orbiting satellites travel from pole
    to pole.
    How Do They Get Up There?
    Satellites travel into space using rockets. They orbit Earth at different
    heights, speeds and along different pathways in order to avoid
    collisions. Although it doesn’t happen very often, in 2009, two
    communication satellites crashed while in orbit. Satellites are
    carefully tracked to try and avoid this happening.
    What Do Satellites Look Like?
    Satellites can vary in shape and size. All satellites have a power source and
    an antenna.

    Power source – This can be a battery or solar panels. Solar panels power the
    satellite by converting sunlight into electricity.

    Antenna – This sends and receives information to and from Earth.

    Many satellites have cameras. They


    also have sensors, such as heat
    sensors, which measure
    temperature.
    The First Satellite
    The first ever artificial satellite sent into space was called Sputnik 1. It was
    launched in 1957 by the Soviet Union.
    Images From Space
    POES Facts
    • POES is a polar-orbiting weather satellite.
    • This satellite orbits 500 miles above Earth, around 14 times every day.
    • It passes close to the North and South Poles.
    • Heat sensors measure the temperature of the land, air, oceans and clouds.

    Search and Batteries


    Imager rescue antenna

    Sensors

    Antenna Solar Array


    Sentinel Facts
    • Sentinel satellites monitor the Earth’s land, oceans and atmosphere as well as
    provide information for emergency services.
    • They were launched by the European Space Agency (ESA)
    • Currently, there are 4 groups (or ‘constellations’) of Sentinel satellites in orbit,
    with a further 3 planned to be launched in the future.
    • The first Sentinel satellites were launched in 2014.
    GOES Facts
    • GOES stands for Geostationary Operational Environmental Satellite.
    • It orbits Earth over 22 000 miles above the Earth’s equator.
    • It completes one full orbit every day.
    • This type of satellite monitors storms.

    Imager
    Solar
    Array

    Sounder
    Antenna
    GOES-16 and GOES-17 Facts
    • Launch date – 19th November 2016 (GOES-16) and 1st March 2018 (GOES-17)
    • High-resolution visible and infrared imaging
    • Maps lightning from around more than half of the Earth
    • Predicts weather more accurately

    Space Weather
    Antenna Sensor

    Advanced Solar Imager


    Imager
    Solar Array

    Lightning
    Mapper
    Solar Sensors
    Future Launches
    Two further weather satellites are planned to launch in the next few years:
    • GOES-T (December 2021)
    • GOES-U (2024)

    Both of these satellites have more up-to-date technology for observing weather
    patterns and give real-time updates. They also have improved cooling systems on
    board to prevent malfunctions in the instruments as has happened in previous
    models.

    Alongside monitoring the weather on Earth, GOES-U will monitor solar winds in
    space.
    Make Your Own Mini-Satellite
    Satellites come in different shapes and sizes. Having learned about the important
    components, have a go at making your own miniature weather satellite using
    recycled packaging or 3D nets (or a mixture). Make sure you label all the
    important components.
    Thank you

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