Seminar Report

Topic: Satellites

Compiled By:

Aditya Dave   (99 EC 07)                                                                      

Himanshu Chauhan   (99 EC 06)

Manan Desai   (99EC 09)

Udit Dave   (99 EC 08)                                    

Umang Doshi   (99 EC 12)                              

ü      What’s Satellite:

·          According to the Oxford dictionary, a satellite is: ‘A heavenly body or man-made object which moves around a larger one.’

·          A satellite is a man-made object put into orbit around a larger body.

ü     Types of Satellites:

Natural:

Naturally existing heavenly bodies, which revolve around the planets.

E.g., The moon for the earth and the Titan for the Jupiter.

Artificial: (On the basis of the application)

-Communication                                  -Reconsats

-Navigation                                          -Weather

-SIGINT                                              -Surveillance

-Early Warning

ü     Artificial Satellites:

Satellites provide the capacity for instant communications between operational forces and their national command authorities irrespective of distance or time of day.

The weather forecasting that is vital to successful military operations is based almost entirely on data gathered by satellites.

Navigation satellites provide data of such accuracy that a receiver anywhere on earth can establish its position to within a few tens of meters.

Reconnaissance satellites are important in verifying agreed limits on strategic arms and of monitoring new military developments.

Wide-area surveillance satellites are used to to detect ships and submarines at sea.

Early Warning satellites are in place to detect missile launches.

Finally, The most secret satellites are those used for electronic intelligence-gatherings.

ü     Experiments:

·          Why do satellites stay in the orbit?

·          How to launch a satellite?

·          How to make Orbit Model?

·          How to predict a satellite pass?

·          Rescue at sea

·          Satellite designers wanted.

·          What time is it?

ü     Strange Facts:

·          E4 Mystery Plane

·          Military Spy Satellites

·          Venus Lamina Population

·          Indian satellites detect `black hole' in Milky Way

·          Primordial Black Hole Explosion

·          Millenium bug hits US spy satellites

ü     Spy Satellites:

·          The American government has been using satellites for surveillance purposes for many years.

·          Satellites used for surveillance purposes are more commonly referred to as spy satellites.

ü      Types:

·          IMINT - Imagery Intelligence Satellites

·          Film Return Satellites

·          Graphic of a 'Keyhole-class' satellite

ü     Lacrosse:

·          A space based imaging radar can see through clouds and can potentially provide images with a resolution that approaches that of photographic reconnaissance satellites. A project to develop such a satellite by NASA is code named Lacrosse, first launched in 1988.

·          Lacrosse's main attribute, like most spy satellites, is its image sensor.

·          Lacrosse beams microwave energy to the ground and reads the weak  return signals reflected into space. This allows the satellite to 'see' objects on Earth that would otherwise be obscured by cloud cover and darkness.

ü     New Technologies:

·          3D Techniques

·          Radiation Proof Chips

·          Spy Planes

Each of these and even more informative topics in the seminar

Thank You

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