Asked by: Queila Regina
science geography

What uses a series of 24 satellites?

Last Updated: 1st May, 2020

Navstar is a network of U.S. satellites that provide global positioning system (GPS) services. They are used for navigation by both the military and civilians. These 24 main GPS satellites orbit Earth every 12 hours, sending a synchronized signal from each individual satellite.

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Hereof, what tools are used to study geography?

Geographers use all sorts of tools to help them investigate their questions. They commonly use maps, globes, atlases, aerial photographs, satellite photographs, information graphics, and a computer program called GIS. Read below to learn about different tools. A map is a flat representation of a part of Earth.

how many satellites does it take for GPS to register an accurate location? four satellites

Also to know is, which type of satellite has the shortest orbital life?

Satellite radio offers uninterrupted, near-CD quality music that is beamed to your radio from satellites.

What is a way of drawing the Earth's surface that reduces distortion?

A map projection is a way of drawing the earth's surface that reduces distortion.

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How many types of map are there?

According to the ICSM (Intergovernmental Committee on Surveying and Mapping), there are five different types of maps: General Reference, Topographical, Thematic, Navigation Charts and Cadastral Maps and Plans.

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What are the methods of geography?

It integrates data spatially, making elaborate use of maps as its special tool. Geography may be studied by way of several interrelated approaches, i.e., systematically, regionally, descriptively, and analytically.

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What are the two main branches of geography?

Geography is divided into two main branches: human geography and physical geography. There are additional branches in geography such as regional geography, cartography, and integrated geography.

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What are the modern techniques in geography?

Today, geomatics methods include spatial analysis, geographic information systems (GIS), remote sensing, and global positioning systems (GPS).

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What are the three uses of geography?

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  • Fields of Geography: Cartography, Hydrology & Meteorology.
  • Analyzing Spatial Organization of People, Places & Environments on Earth's Surfaces.
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What is the most important tool of geographers?

The two most important tools geographers use are maps and globes.

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What is geography Why is it important?

To understand the geography of past times and how geography has played important roles in the evolution of people, their ideas, places and environments. To develop a mental map of your community, province or territory, country and the world so that you can understand the “where” of places and events.

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How is GPS used in geography?

The global positioning system (GPS) is a network of satellites and receiving devices used to determine the location of something on Earth. GPS receivers provide location in latitude, longitude, and altitude. They also provide the accurate time. GPS includes 24 satellites that circle Earth in precise orbits.

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Which process is used to protect transmitted data in a VPN?

Transmission of Data Over VPN
Once the data is encrypted on your computer it is sent through the virtual private network tunnel to the server that your VPN provider operates. This is part of the process of protecting your privacy and anonymity – all data between your computer and VPN server is encrypted.

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What type of satellite has propagation delay?

The expected propagation delay will be a little more than 100 milliseconds per hop. Geosynchronous satellites, on the other hand, orbit the Earth at about 36,000 kilometers above the equator and single hop is calculated to take 270 milliseconds one way or 540 milliseconds for a round trip.

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Which wireless technology requires unobstructed line of sight between the sending and receiving devices?

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What are the types of wireless media?

Types of Wireless Communication. The different types of wireless communication mainly include, IR wireless communication, satellite communication, broadcast radio, Microwave radio, Bluetooth, Zigbee etc.

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What are the 3 segments of GPS?

The current GPS consists of three major segments. These are the space segment, a control segment, and a user segment. The U.S. Air Force develops, maintains, and operates the space and control segments.

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What kind of information can the GPS provide?

GPS satellites circle the Earth twice a day in a precise orbit. Each satellite transmits a unique signal and orbital parameters that allow GPS devices to decode and compute the precise location of the satellite. GPS receivers use this information and trilateration to calculate a user's exact location.

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What affects GPS accuracy?

It depends. GPS satellites broadcast their signals in space with a certain accuracy, but what you receive depends on additional factors, including satellite geometry, signal blockage, atmospheric conditions, and receiver design features/quality. However, their accuracy worsens near buildings, bridges, and trees.

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How does GPS keep time?

In a nutshell, the receiver looks at incoming signals from four or more satellites and gauges its own inaccuracy. So the receiver sets its clock to that time value, and it then has the same time value that all the atomic clocks in all of the satellites have. The GPS receiver gets atomic clock accuracy "for free."

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Why are 4 satellites needed for GPS?

You need four satellites because each data from one satellite put you in a sphere around the satellite. By computing the intersections you can narrow the possibilities to a single point. Three satellites intersection places you on two possible points. The last satellite give you the exact location.

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How long will GPS satellites last?

GPS systems in the United States have gone through six major iterations since 1978. The latest block of satellites, called IIF, launched between 2010 and 2016. The 12 satellites are all designed to last 12 years.