Learning About The Satellites And Their Orbits – Polar Geostationary And Sun-Synchronous YouTube Lecture Handouts

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The Satellites and Their Orbits

  • Satellite is an artificial object which has been intentionally placed into orbit.

  • Orbit is a gravitationally curved trajectory of an object around a point in space.

  • The orbit that is chosen for a satellite depends upon its application.

  • Satellite's orbit works because of a balance between 2 forces.

  • Orbit is a combination of the satellite's velocity.

Image shows the satellite orbit

Image Shows the Satellite Orbit

Image shows the satellite orbit

Orbits Image - 1

Orbits Image - 1

Orbits Image - 1

Precession of Earth:

Precession is caused by the gravitational pull of the Sun and the Moon on the Earth.

  • Period of precession is about 26,000 years.

  • Caused by the gravitational pull of the Sun and the Moon on the Earth.

Orbits Image - 2

Orbits Image - 2

Orbits Image - 2

Precession of Orbit

It is known as axial precession. It is the movement of the rotational axis of an astronomical body, whereby the axis slowly traces out a cone. For Earth, this is also known as the precession of the equinoxes, lunisolar precession, or precession of the equator.

  • Nodal precession

  • Sun synchronous

Orbits Image- 3

Orbits Image - 3

Orbits Image- 3