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Is a GPS system based on a constellation of four satellites strategically placed around the Earth?
Wiki User
∙ 8y ago
No, for GPS to work there must be 24 operational satellites in orbit, with 12 of those above the horizon as seen from any point on earth.
For a GPS receiver to get a latitude-longitude fix it must receive signals from a minimum of 3 satellites and to also get altitude it must receive signals from a minimum of 4 satellites. Each satellite that it receives above these minimums allows the receiver to get a more precise fix.
Wiki User
∙ 8y ago
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What are the satellites placed 200 - 800 kilometers above earth?
Do you need a complete listing? There are probably thousands of them.
Should there be a limit placed on the number of satellites that are allowed to orbit the earth?
Yes because there are already 7,400 unused satellites orbiting Earth as we speak. Some fall down to Earth like metores. Some hit other satellites. There should be a limit.
How many times does a GPS satellite orbit the earth in a week?
The GPS satellites are not in geo-stationary orbit, but instead orbit twice every time the Earth rotates once. This means that for any observer the satellites appear to orbit once overhead each day. Such an arrangement gives better coverage. It is also clever in the sense that the motion of any GPS satellite will repeat itself each day. The GPS constellation of 24 satellites are arranged in six different orbital planes, each inclined 55 degrees to the equator. To obtain exactly two orbits per day, the satellites are placed at an altitude of 20,200km!!!
What kind of satellites are used for Global Positioning Systems?
GPS uses satellites that were placed into orbit by the Department of Defense. The government set up the entire network on their own, and it is free to use as long as you already have a GPS device.
Why are moons natural satellites to planets?
Satellites are objects placed in orbit by human enterprise. Moons are natural satellites because they orbit planets or other smaller celestial bodies, but are formed in some way out side our control. IE: collisions, captured dwarf planets, or created out of the same Protoplanetary Disk as it's primary.
How do you use strategically in a sentence?
These explosives were strategically placed for maximum damage. I strategically placed my chess pieces so he would get the wrong idea as to my plan of attack. I strategically altered the troops formation so that the enemy will mistake the shock troops for the Main force. Too many war examples much?
Is strategically a verb or adverb?
It's an adverb. Example: He placed the vase strategically in the large window.
Is there a sentence for strateegically?
By sentence, do you mean 'Can you use Strategically in a sentence?" If so, then: The boy Strategically placed the decorations on the Christmas tree. Ask on!
What is the history of sputnick?
Sputnik is a series of soviet satellites. These satellites are placed from 1957 year.
How does a satelite get into space?
Some natural satellites were created there, but artificial satellites are placed there using rockets.
Why is the delphinus the constellation placed in the sky?
It is placed in the sky because there is not enough room for it on Earth!
Why was the constellation Orion placed in the sky?
His hunting dog
Where are the freeze plugs in a 1988 Dodge Caravan?
Various strategically placed areas on the block.
Who strategically placed forts during the French and Indian War the British or the French?
the british
How does satellites avoid collision?
The vast majority of satellites are in geo-stationary orbits. This means, they travel around the Earth at the same speed that the Earth rotates - making them appear in the same place. One example is the GPS satellite network. Other satellites that actually orbit around the Earth, are at a different altitude - so they would (thoretically) never collide with a stationary one. Those that are orbiting, are placed in such a way, that they also avoid each other.
What is the name of the Moon's satellites?
The moon has no natural satellites. The moon is a satellite of the earth. The only satellites that orbit the moon are those that are placed there by people to study the moon.
How do you finalize the work breakdown structure?
You add control accounts at strategically placed control points.
