At present there are around 24-32 satellites orbiting in medium earth orbit(11,000 miles)
more the satellites more accurate navigation is produced.
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.
There is an angle of about 66.5° between the plane of the earth's orbit of the sun and the earth's axis of rotation. Given a default expected angle of 90° for natural satellites in general, the deviation is about 23.5°.
They usually get their energy from the Sun, but they may also have a nuclear reactor. That's how they get their energy; how they work in detail would depend on what they are supposed to do. There are satellites for many different purposes.
Precise numbers of "spy satellites" are unavailable, and constantly changing. Dozens, certainly. There are several different types of "spy satellites". There are photographic reconnaissance satellites, designed to take detailed photos of the surface. There are electronic surveillance satellites, designed to capture and record electronic signals such as radios.
According to Oberright, John E. "Satellite, Artificial." World Book Online Reference Center. 2004. World Book, Inc. http://www.nasa.gov/worldbook/artificial_satellites_worldbook.html about 3000 useful satellites launched by the US and 40 other countries orbit Earth along with about 6000 "pieces of space junk." this guy doesn't kno what he's talkin about!!!! Um, are you sure? I need to know this for science ,dang it! There is actually 15,000 American satelites in orbit right now!! O! I'm smart! o burn.
The number of man-made satellites currently in orbit is approximately 3,600, but not all of them are functional. The estimate of the ones still in operation is 1,000.
There are thousands of satellites in Earth's orbit, with estimates ranging from 2,200 to over 3,000 active satellites. Additionally, there are many more inactive or defunct satellites and debris in orbit.
yes
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2465 artificial satellites orbiting the Earth
1000, Min
There are hundreds. If that seems like "many" to you, then the answer is 'yes'.
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.
Thousands, but the actual number is classified and varies from week to week as satellites de-orbit and new ones are launched.
Satellites are typically positioned around 22,236 miles above the Earth in a geostationary orbit.
Satellites cannot orbit the US; they orbit the Earth, and there are several thousand of them.
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.