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How many geostationary satellites are there in orbit and what do they provide?
Wiki User
∙ 10y ago
there are more than 200 sattellites
Wiki User
∙ 10y ago
Anonymous
approx 450
source : https:// w w w. yo ut ub e. co m / watch?v=GDrBIKOR01c
at timestamp 7:25
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How many GPS Satellites does the US Deptartment of Defense have?
There are currently 30 healthy GPS satellites in orbit.
Why are ground stations in continuous contact with satellites in geostationary orbit?
Just imagine managing a system of communication satellites which were non-geostationary. Data needs to be sent to one city, one home, but the satellite for the job is different every time. The task would be manageable, but unnecessarily difficult. Further more, metropolises must have priority over small towns- or oceans. New York needs more satellites than Apple Creek Ohio or the Atlantic Ocean. Finally, many satellites serve a very specific audience. Your favorite radio station would almost never come into reception if the satellite broadcasting it is circling the world.
What is the inclination of a satellite to the earths equator?
There is no set inclination of a satellites orbit to the earth's equator. Once in space, the spin of the earth or where it's poles happen to be become irrelevant to the satellite. Many satellites like spy and weather satellites orbit over the two poles (north and south) while communication satellites are placed in orbit directly above the equator at a height that is synchronised with the earth's orbit. This way they stay permanently above the same place on the equator and do not APPEAR to move at all.
What is the satellite that always stays over one spot on Earth?
A "geo-synchronous" orbit is one in which a satellite orbits in exactly 23 hours 56 minutes, the same rate at which the Earth spins. So while the satellite is moving and the Earth is moving, they are moving together at the same angular speed. This only works for equatorial orbits.
How many minimum number of geostationary satellite needed for uninterrupted global coverage?
In theory, 2 satellites in diametrically opposite geosynchronous orbits could cover the planet. In order for the satellites to communicate, a minimum of 3 would be needed, each at a 60 degree angle to the others. At this point, the strength and quality of coverage increases proportionally to the number of satellites.
When was satellite radio invented?
The idea of sending a satellite to geostationary orbit was first published in 1928 by Herman Potocnik, however this was widely overlooked. Science Fiction writer Arthur C. Clarke is often credited for the proposal of creating geostationary communication satellites after his article "Extra-Terrestial Relays--Can Rocket Stations Give Worldwide Radio Coverage?" was published in the magazine Wireless World in 1945. However, it wasn't until 1964 that Syncom 3, the first geostationary satellite, was actually launched. Since then, many satellites have been sent to geostationary orbit. Most communication and broadcast satellites use a geostationary orbit because it is ideal for sending signals to a specific region.
How many geostationary communications satellites are in service today?
300
How many days does it tack to orbit the Earth?
The ISS orbits the Earth in about 90 minutes. Some satellites are in geostationary orbit, orbiting in exactly one day. The Moon orbits (moves around) the Earth in about 28 days!
How many satellites orbit the US?
Satellites cannot orbit the US; they orbit the Earth, and there are several thousand of them.
Do all satellites orbit the same direction?
No, all satellites do not orbit Earth at the same altitude. An good overview of this can be found on http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx. This overview reviews Low Earth Orbit, Medium Earth Orbit and Geostationary Orbits.
Why are there so many Iridium satellites in orbit?
It takes that many to provide complete coverage of the Earth, including the polar regions.
How many satellites orbit Saturn?
there is no satellites orbiting Saturn
Is there satellites that orbit mars if so how many?
2
How many time satellite orbits the earth each day?
If the satellite is anywhere near Earth's surface, it will take about one and a half hours to orbit Earth once. As the orbit gets higher, it will take longer - both because it must travel a longer distance, and because it will be slower.
Medium earth orbit satellites?
With large number of low-earth-orbit satellites and the geo-synchronous orbit stuffed full of communications satellites, there aren't all THAT many "medium" altitude satellites. But there are some. The GPS navigation satellites, for example, are in highly inclined 12-hour orbits, and an unknown number of military "spy" satellites are in that middle range.
How many satellites has India sent to earth orbit?
10
How many miles up do picosat satellites orbit?
a lot
