INTERESTING..Why Are Some Satellites Described As Being Stationary
The usual solution to this problem are orbits with long hang times in view of a pole specifically the Molniya orbit commonly used by the Russians with a lot of high-latitude territory. See full answer below.
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The best example of the latter is satellite TV.
Why are some satellites described as being stationary. GEO satellites orbit the earth at a fixed distance of 35786 km. A geostationary satellite is in an orbit that can only be achieved at an altitude very close to 35786 km 22236 miles and which keeps the satellite fixed over one longitude at the equator. A they can only observe stationary weather systems B they have no orbital motion C their orbital motion matches the earths rotation D their altitude never changes It is considered as.
The majority of communication satellites to date are in geostationary orbit and this is expected to remain the case for some time. In the solar system there are six planetary satellite systems containing 185 known natural satellites. Best known occupants of the Clarke Belt are the many domestic and international TV broadcast weather reporting and communications satellites.
Why are some satellites described as being stationary. Those kind of satellites are called geostationary satellitesA geosynchronous satellite is a satellite that orbits the Earth and gradually repeats its orbit over specific points on the Earth. There are several hundred communication satellites and several meteorological satellites in such an.
A satellite of the latter kind is known as a geostationary satellite and it plays an instrumental role in global communications and weather forecasting. Satellites in geostationary orbit GEO circle Earth above the equator from west to east following Earths rotation taking 23 hours 56 minutes and 4 seconds by travelling at exactly the same rate as Earth. A geostationary orbit also referred to as a geosynchronous equatorial orbit GEO is a circular geosynchronous orbit 35786 kilometres 22236 miles in altitude above Earths equator 42164 kilometers in radius from Earths center and following the direction of Earths rotation.
Satellites must be constantly orbiting the Earth at high velocities in order to keep themselves from falling back to the ground due to the Earths gravity. Geostationary satellites are in a geostationary orbit around the planets equator at an altitude of approximately 22236 miles above sea level and they travel at 191 miles per second in the same direction the Earth is turning. As noted you cant be stationary without a really big solar sail or magic rockets.
If the same satellite is observed for an entire day from a particular position on the ground it either drifts north or south it traces a distorted path like the number 8 or remains stationary in the same spot. The satellite itself is also known as the space segment and is composed of three separate units namely the fuel system the satellite and telemetry controls and the transponder. As described above the so-called Clarke Belt is the region of space 22300 miles above Earth where satellites seem stationary above the rotating Earth.
However some satellites are orbiting the planet at the same rate that. Geosynchronous networks are communication networks base. Some satellites are natural while others are artificial man-made.
The speed of the satellite at this distance matches the earths rotation thereby keeping the satellite stationary over a particular point on the earth. An object in such an orbit has an orbital period equal to the Earths rotational period one sidereal day. This NASA photo shows the Hubble Space Telescope in May 2009 as Atlantis astronauts release it into space after its fifth and final overhaul.
The article described the fundamentals behind the deployment of artificial satellites in geostationary orbits for the purpose of relaying radio signals. Clarke is often quoted as being the inventor of the concept of the communications satellite as well as the term Clarke Belt employed as a description of the orbit. The moon is an example of a natural satellite that orbits the earth.
Satellite communications are comprised of 2 main components. Hubble launched into space on April 24 1990 and. This question was originally answered on Quora by Robert Frost.
The satellite appears motionless at a fixed position in the sky to ground observers. How do television satellites stay in the same spot in the sky yet other objects like the ISS circle around the planet. These satellites are in geostationary orbits.
Answer 1 of 3. The transponder includes the receiving antenna to pick-up signals from the ground station. Multiple Molniya satellites can provide very good coverage.
Weather and TV satellites seem to hover above the equator. While some satellites whiz around the world in 90 minutes others dont seem to move at all. A satellite that appears to be stationary is called a geostationary satellite the necessary condition for a satellite to be geostationary is that it.
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