• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Geosynchronous Satellites

Extracts from this document...

Introduction

Geosynchronous Satellites

  1. Introduction to Geosynchronous Satellites (GEO satellites)

Geosynchronous satellites are also known as geostationary satellites. A GEO satellite orbits the Earth in an equatorial orbit at an altitude where is takes the satellite a full 24 hours to rotate round the planet. It is located exactly 22,300 miles out of space. A GEO satellite spins on its axis and will always remains over the same fixed point of the planet at all time. Its orbit is usually circular with an inclination of 0º (TheTech 30/3/2002).

image00.png

Pic 1: Geosynchronous Orbit (Introduction to Satellites and Orbits 4/7/2002)

GEO satellites are ideal for the use as communication satellites and also for remote imaging as they always remain stationary and can repeatly scan the same points of the earth beneath them (Dundee Satellite Receiving Station 4/7/2002). Satellite television broadcasts and communications companies around the world make use of GEO satellites. The GOES meteorological satellites operated by the U.S. provide constant satellite coverage of the entire hemisphere from a geosynchronous orbit (Introduction to Satellites and Orbits 4/7/2002).

  1. Aims and Objectives

This project is made to understand the functions of the GEO satellite.

...read more.

Middle

1963

  • Syncom 2 was the first GEO satellite.

1964

  • 1964 Olympic games in Japan were telecast live by the GEO satellite Syncom III

1976

  • 120 transponders available over the U.S., each capable of providing 1500 telephone channels or 1 television channel
  • Canada had their own GEO system; Intelsat was well on its way to another generation of global satellites
  • Indonesia had become the 3rd country to have their own satellite, Palapa
  • Comsat had launched the first mobile communication satellite, Marisat, in February 1976, to provide mobile services to United States Navy and other maritime customers.
  1. Usage of GEO satellites
  1. Communication Satellite

There are more than 100 communication satellites orbiting Earth. It acts as a relay station in space. People use them to bounce messages from one part of the world to another. It takes the voice communications that long to travel all the way up to the satellite and back to Earth. These messages can be telephone calls, television pictures and Internet. Communication satellites such as the EchoStar 3 move in a geosynchronous orbit (TheTech 30/3/2002).

image01.pngimage02.png

Pic 2: EchoStar 3 (TheTech 30/3/2002)

  1. Weather Satellite

Weather satellites are used for earth observation purpose (remote sensing system).

...read more.

Conclusion

  1. Conclusion

In conclusion, the GEO satellite plays an important part in our lives. It helps us to communicate and to predict the weather. It is important to know how the satellite works as it saves our time, our lives, provide us with important information and for entertainment purposes.

                                                                (950 words.)

References

1) TheTech, 30/3/2002 www.thetech.org

2) Dundee Satellite Receiving Station 4/7/2002 www.sat.dundee.ac.uk/pdusfaq.html

3) Introduction to Satellites and Orbits 4/7/2002 www.chesapeake.towson.edu/data/orbits4.asp

4) Geostationary, LEO, MEO, HEO Orbits 4/7/2002 www.geo-orbit.org/sizepgs/geodef.html

Conclusion for the whole thing

There are 3 main types of satellites, which are the LEO satellites, GEO satellites, and polar orbiting satellites. With these satellites, communication, entertainment, information, weather forecast, prediction of natural disasters, rescues and many more benefits can be easily obtained.  

...read more.

This student written piece of work is one of many that can be found in our GCSE The Earth and Beyond section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE The Earth and Beyond essays

  1. Should We Persue Manned Space Flights?

    * Humans need so much in the way of supplies - oxygen, warmth, protection, etc - that the extra weight forbids going to most places. * Space travel is intrinsically dangerous, and it better to lose machinery in the inevitable accidents than human lives.

  2. Space Defence Satellites.

    All rocket-engine burns occur at a precise moment and last for a precise amount of time so that the satellite achieves its proper position in space. In 1990 the United States began launching some satellites from aircraft flying at high altitudes.

  1. Journey to the farthest planet (Pluto).

    I hope that scientists should conduct more experiment and research deeper before they conclude that they have found an AIDS vaccine. How could a vaccine that only provides 30% to50% protection be on sale? There is one in every four African contracting AIDS and that is a staggering amount.

  2. When one begins to study satellites he or she is bound to find out ...

    These factors are very important to the life of the satellite. Before a flight scientists must decide what sort of orbit is needed and how high it should be above the Earth. A satellite must be placed into an effective orbit so as to begin circling the Earth at the correct speed.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work