NOAA Ocean Service Education banner

" "
Return to The Global Positioning System

When you add a second satellite (satellite with green sphere), about 12,000 miles away, you can only be where these two imaginary spheres intersect (the white circle). Click on the arrow below to see what happens when you add another satellite.

Click the arrow to add another satellite
next page  

GPS satellites and positioning - two satelites

Error processing SSI file