To provide satellite ranging, a system of 21 US satellites orbit earth twice a day at an altitude of 10,900 miles. Accurate to within a yard if supplemented by a ground-based transmitter. Any point on earth can be identified by measuring its distance from a group of these satellites. A navigation device in a boat, car, ship, airplane, or mobile phone locks on to at least four satellites. Each of these satellites measure a precise location of longitude, latitude and, in some cases, altitude and velocity.
What is GLOBAL POSITIONING SYSTEM (GPS)?
Featuring Black’s Law Dictionary
Nothing implied or stated on this page should be construed to be legal, tax, or professional advice. The Law Dictionary is not a law firm and this page should not be interpreted as creating an attorney-client or legal adviser relationship. For questions regarding your specific situation, please consult a qualified attorney.
- Guide to Court Ordered Mediation
- Workplace Retaliation – What It Is And How To Handle It
- A Guide on Lemon Law for New & Used Cars
- The Exclusionary Rule
- Illegal Eviction – The Consequences & How to Avoid It
- California Landlord-Tenant Laws
- What is Duress?
- Conservatorship vs Guardianship
- Housing For Felons
- How to Fill Out Form W-9
- Best Way to Find Someone in Jail for Free
- What Is A Police Welfare Check?
- How Do You Look up License Plate Numbers?
- Best Way To Run A Free Arrest Warrant Check
- Signing a Letter on Someone Else’s Behalf
- Best Way to Write a Professional Letter to a Judge
- How To Find A Name & Address Using A License Plate Number
- How To Find An Inmate’s Release Date
- How to Transfer a Car Title When The Owner Is Deceased
- What Rights Do Convicted Felons Lose?