Television service, weather prediction, global positioning system in my car.
Homework?!
Weather monitoring, satellite navigation, aerial Photography, communications, broadcasting and astronomy are 6 big uses.
A single satellite can only give you relative location. 3 satellites can give a 2-D positioning/location that includes longitude and latitude. 4 satellites can give a 3-D positioning/location that includes longitude, latitude and altitude. Only 4 satellites can give you absolute location.
Answer: 1.communication satellite 2.navigational satellite 3.weather satellite 4.millitary satellite 5.scientific satellite 6.satellite launches. It composed of 6 satellites...........i hope.....my answer can help you.....
it help support millitary activities 2-it help transfer telehone call over the ocean 4-they re used for exploring different planet 5-
Jupiter's 4 major moons, known as the Galilean satellites, are named Io, Europa, Ganymede, and Callisto. Io is an orange moon with an abundance of volcanic activity most likely caused by Jupiter's magnetic field. Europa is a cold, frozen ice moon and is also the smallest of the four. Ganymede is the largest and also is thought to have oceans. Callisto is the outermost moon (of the 4) and is covered with craters.
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Sputnik-I launched October 4, 1957 from the USSR.
ther are 4 satellites
3 different types
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.
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.
For accuracy. 1 satellite can only tell you the distance from that satellite (a 3-d sphere around it). 2 satellites can only tell you what your distance from the two of them are(a 2-d circle between them). 3 satellites can give you 2 single points (1 one the surface of Earth, and one out in the middle of space, and they assume you are on Earth when using GPS). 4 satellites is to give extra accuracy on that point that you are at (4 times as accurate as 3 satellites).
The only thing your unit can tell from a single satellite is roughlyhow far you are from that satellite.But what you want is your location nailed down in 3 dimensions ...where you are left/right, where you are forward/backward, andwhere you are up/down. Your receiver calculates each of theseby comparing its distance from different satellites.And if you want all three dimensions, then you need a minimumof four (4) different satellites, not 3.
There are currently 32 satellites, a gps system needs to receive a signal from at least 3 of them to function. Older systems only used 3-4 but new systems can use up to all 32 the more satellites that a system uses....the greater the accuracy.
triangulation
In order to calculate its current positions, the GPS device needs to receive a data signal from 4 different satellites. If it cannot get signals from 4 satellites then it won't be able to calculate an accurate position.
Different uses include:- 1) Magnifying Glass 2) Fishing 3) Explorations 4) Some Solar Panels, Etc.
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