What are the 3 segments of GPS?

Related questions

1. What is difference between GPS and DGPS?
2. What do yellow flags in the ground mean?
3. How accurate is RTK?
4. What do surveyors use to measure land?
5. What is the use of GPS in surveying?
6. What do survey markers mean?
7. Is it illegal to remove survey stakes?
8. What is the full form of DGPS?
9. What is the accuracy of GPS surveying?
10. What kind of math do surveyors use?

Tags

1. #control
2. #space
3. #segments
4. #timing
5. #three
6. #positioning
7. #global
8. #users
9. #system
10. #navigation
11. #provides
12. #segment
13. #owned
14. #consists
15. #utility
16. #services