A minimum of 24 operational Navstar satellites are required for the GPS system to work effectively. These satellites are strategically positioned in orbit to ensure global coverage and accurate positioning for GPS receivers on Earth.
A GPS receiver typically needs signals from at least 4 satellites to accurately calculate your position on Earth. By triangulating the signals from multiple satellites, the GPS receiver can determine your location with high precision.
Typically, around three geostationary satellites are needed to cover the entire Earth for continuous communication and observation. These satellites are strategically placed around the equator to provide global coverage without interruption.
To determine a position using GPS, at least four satellites are needed because each satellite provides distance information in the form of a radius from the satellite to the receiver. With four satellites, the receiver can calculate its latitude, longitude, altitude, and the exact time. Three satellites are needed to determine a 2D position on the Earth's surface, while the fourth satellite is necessary to account for the receiver's clock error.
GPS receiver will be located at the centre of the satellite zones.....It will be synchronized with all satellites....Hence it can receive signals from any one of the satellite at a time....Remaining signals which are transmitted from other satellites are ignored..
To triangulate the epicenter of an earthquake 3 points are required.
I'm assuming you are talking about GPS when you say "satellite." RF tracking can be directional. It takes three RF receiver stations to triangulate the position of an RF transmitter and is usually less accurate than GPS. RF is also more limited by range, so the RF tracking stations are usually required to be mobile depending on the strength of the transmission signal.
9 (two less than the number of vertices in the polygon).
Latitude/longitude . . . . . 3 satellites Elevation . . . . . 4 satellites But the more birds, the better the accuracy of the position data. Also, if you paid less than $1,000 for your instrument, then don't believe anything it tells you for elevation.
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3 GEO Satellites located at 120 degrees are required to cover whole of the earth.
At least four GPS satellites are required to pinpoint a location on Earth's surface accurately using trilateration. Three satellites are needed to determine a two-dimensional position (latitude and longitude), while the fourth satellite provides the altitude component.
A minimum of 24 operational Navstar satellites are required for the GPS system to work effectively. These satellites are strategically positioned in orbit to ensure global coverage and accurate positioning for GPS receivers on Earth.
Satellites used for Global positioning, send clock signals back to the earth, along with identity signals. The timing of the clock signals are very accurately controlled. The receiver uses the clock signals and by applying mathematical processes and comparing with an on board almanac, calculates the receiver's position. At least three signals from different satellites are required to fix a position. More signals then add to the accuracy.
24
24
A GPS receiver typically needs signals from at least 4 satellites to accurately calculate your position on Earth. By triangulating the signals from multiple satellites, the GPS receiver can determine your location with high precision.