3.4.3.1. Space segment

Try these first

1. 1.

   What is the primary function of GPS satellites?

   Hint

   Think about what GPS is used for.

2. 2.

   How many satellites are generally in the GPS constellation?

   Hint

   Consider the number used for global coverage.

3. 3.

   What is the purpose of GPS satellites?

   • To transmit TV signals
   • To provide navigation data
   • To communicate with satellites

   Hint

   Recall what GPS is mainly used for.

4. 4.

   True or False: GPS satellites operate at an altitude of 12,000 miles.

   • True
   • False

   Hint

   Remember the characteristic altitude related to GPS functionality.

5. 5.

   If a GPS receiver can see six satellites, explain how this might affect the accuracy of its positioning compared to seeing just three.

   Hint

   Think about how more data points can lead to better conclusions.

6. 6.

   Illustrate how the failure of one satellite might impact GPS accuracy and how the system compensates for it.

   Hint

   Consider how the design of the constellation aids in reliability.