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What is GPS, its errors and details?

June 17, 2016
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WHAT ARE THE COMPONENTS OF  GPS?

The system consists of three segments

  1. Space Segment
  2. Control Segment
  3. User Segment

SPACE SEGMENT

This segment consists of 24 orbiting satellites in 6 different orbit paths at about 20000 km altitude.Each Satellite has an orbital period of about 12 hrs.At any time at least four satellites are above the user’s horizon at minimum elevation of 9.5 deg.

Following data is transmitted by each satellite over two frequencies

  • Its Identity
  • Its Position.
  • Extremely accurate Time of sending the message which is provided by the atomic clocks fitted on each of the satellites.

CONTROL SEGMENT

The control segment is composed of:

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Amit Sharma

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