explain space mission, what is meant by the orbital satallite what, is HEO, MEO, LEO explain by detail as per 10 std.
Answers
Hi Kaustubhpatole, here is ur answer...
SPACE MISSION:-
Space exploration or space mission is the discovery and exploration of celestial structures in outer space by means of evolving and growing space technology. While the study of space is carried out mainly by astronomers with telescopes, the physical exploration of space is conducted both by unmanned robotic space probes and human spaceflight.
While the observation of objects in space, known as astronomy, predates reliable recorded history, it was the development of large and relatively efficient rockets during the mid-twentieth century that allowed physical space exploration to become a reality. Common rationales for exploring space include advancing scientific research, national prestige, uniting different nations, ensuring the future survival of humanity, and developing military and strategic advantages against other countries.
ORBITAL SATELLITE:-
A satellite in a geostationary orbit appears to be in a fixed position to an earth-based observer. A geostationary satellite revolves around the earth at a constant speed once per day over the equator.
Meo:Medium Earth Orbit
Satellite at different orbits operates at different heights. The MEO satellite operates at about 5000 to 12000 km away from the earth's surface.
These orbits have moderate number of satellites.
Leo:Low Earth Orbit
LEO satellites operate at a distance of about 500-1500 km.
The antennas can have low transmission power of about 1 watt.The delay of packets is relatively low.Useful for smaller foot prints.
Heo:Highly Elliptical Orbit
This orbit is made for satellites that do not revolve in circular orbits, only a very few satellite are operating in this orbit.