Introduction
In space, it is often difficult to decide which is the “satellite” in a pair of bodies. This is because all objects that have mass (quantity of matter in a body) are affected by gravity. The motion of the primary object is also affected by the satellite.
Meaning of Satellite
A satellite is an object that revolves round another object (which is known as its primary). Satellites can be man made or may be naturally occurring such as moons, comets, asteroids, planets, stars and even galaxies.
An orbit is the path that an object makes around another object while under the influence of a source of centripetal force, such as gravity.
Orbits were first analyzed mathematically by Johannes Kepler who formulated his results in his three laws of planetary motion. Isaac Newton demonstrated that Kepler’s laws were derivable from his theory of gravitation and that, in general, the orbits of bodies responding to the force of gravity were conic sections.
Newton showed that a pair of bodies follows orbits of dimensions that are in inverse proportion to their masses about their common centre of mass. Where one body is much more massive than the other, it is a convenient approximation to take the centre of the mass as coinciding with the centre of the more massive body.
Nigeria SAT 1
Nigeria SAT 1 means the first Nigerian satellite sent into orbit. It was launched on 27th September 2003, abroad a Russian rocket. The satellite is to monitor water resources, soil erosion, deforestation and disasters. It will also used to survey oil pipelines, and prevent oil theft and smuggling activities. In specific terms, the satellite is expected to boost expansions in communication, agriculture, security surveillance and government is expected to earn 200 million US Dollar annually from subscriber Africa nations…
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https://passnownow.com/lesson/satellites/
