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You need 4 to locate a position. There are 24 satellites in use in the sky with 8 spares.
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∙ 12y ago
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How many satellites are needed to provide a place on earth?
If the question is regarding finding the latidude and longitude of one point on the earth, the answer is a minimum of three satellites. The method used is called triangulation. If you wish to know the altitude of the point, a minimum of four satellites are needed.
How many satellites are there in the world?
5000
How many satellites in sky?
about 3,000
WHAT is the difference between satrack and gps?
Gps uses 3 satellites to get you a global position and satrack only locates where you are.
How many satellites does Ganymede have?
Ganymede Jupiter's moon has 6 satellites in total from the north Pole on the Earth.
At least how many satellites are needed to calculate the position?
It takes at least 3 satellites.
Name and position of satellites are in the sky?
There are thousands of satellites; most of them change their position rather fast.There are thousands of satellites; most of them change their position rather fast.There are thousands of satellites; most of them change their position rather fast.There are thousands of satellites; most of them change their position rather fast.
How many GPS satellites are required to triangulate a plan-form position?
You would need at least three GPS satellites to pinpoint your location. However, you would need a fourth to also identify your elevation.
How many satellites are needed to provide a place on earth?
If the question is regarding finding the latidude and longitude of one point on the earth, the answer is a minimum of three satellites. The method used is called triangulation. If you wish to know the altitude of the point, a minimum of four satellites are needed.
How many satellites does Tom Tom GPS use?
Every GPS unit needs a minimum of four (4) satellites to compute a 3-dimensional position, and performs more accurate calculations with more satellites. I think my TomTom is capable of using 12 simultaneous satellites if it can see that many. Yours may be different.
How does a GPS function work?
There are many satellites that are positioned in the lower atmosphere. They relay their position by transmitting a "beacon" signal to a ground or water based station. When you have 3 or more satellites using a beacon, you can triangulate your position by using simple trigonometric geometric calculations. If you can obtain more satellites, then your position is more accurate. Many devices limit the number of satellites that they try to pick up the beacon because of the battery drain. Most devices on the common market are good to about 30 meters or 100 ft. GPS satellites are maintained in orbit by using very small thrusters and powered by solar and/or extra powerful batteries.
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.
How many satellites does the receiver need to be fixed on in order to know it's position?
For an unconstrained solution, you need 4 satellites in view to get a GPS fix. If you know one variable, such as altitude (on a ship, for instance) you can do it with 3.
How many satellites does Io have?
It has 3 satellites!
What do you have to have to make a GPS work?
GPS devices receive signals from several Global Positioning Satellites, which orbit the earth. The device uses the difference in timing from the signals to calculate its own position. I don't remember, but I think you can get a position with signals from 4 satellites, so you would need to have a clear signal from the satellites in order for the device to calculate its position.
How many of the orbiting satellites are US satellites?
90000
How many geo stationary satellites are needed to cover the earth at a time?
Please be a little more precise in your meaning when you say "cover" the Earth. For radio or TV communications, three satellites in geosynchronous orbit will be visible from any inhabitable locale on the planet. (The polar regions aren't really "inhabitable", and aren't visible from GEO. ) For navigational purposes, more are required. The GPS system requires line-of-site to FOUR satellites at one time in order to give a good "fix" of your position; the USAF uses 27 satellites to accomplish this, anywhere on the Earth.
