The six planes have approximately inclination (tilt relative to Earth's equator) and are separated by 60° right ascension of the ascending node (angle along the equator from a reference point to the orbit's intersection).Orbiting at an altitude of approximately 20,200 kilometers (12,600 miles or 10,900 nautical miles orbital radius of 26,600 km (16,500 mi or 14,400 NM)), each SV makes two complete orbits each sidereal day, so it passes over the same location on Earth once each day. The orbital planes are centered on the Earth, not rotating with respect to the distant stars. The GPS design calls for 24 SVs to be distributed equally among six circular orbital planes. These are the space segment (SS), a control segment (CS), and a user segment (US).Space segmentThe space segment (SS) is composed of the orbiting GPS satellites, or Space Vehicles (SV) in GPS parlance. GPS MOBILE TRACKING System segmentationThe current GPS consists of three major segments. Jump up ^ Although Palmyra Atoll lacks a permanent, indigenous population, between four and 20 nature conservatory employees, United States Fish and Wildlife Service staff and researchers live on the island at any given time.Īlthough Wake Island lacks a permanent, indigenous population, the island is populated by around 150 military and civilian contractors, who staff the Wake Island Airfield as well as communications facilities. The uninhabited territories contain no water area.Īlthough Midway Atoll lacks a permanent, indigenous population, around 40 United States Fish and Wildlife Service staff and service contractors live on the island at any given time. Represented by a non-voting resident commissioner in the House of Representatives. Puerto Rico is officially known as the Commonwealth of Puerto Rico. The Northern Mariana Islands are officially known as the Commonwealth of the Northern Mariana Islands. The state of Virginia is known officially as the Commonwealth of Virginia.Ī b c d e Represented by a non-voting delegate to the House of Representatives. The state of Rhode Island is known officially as the State of Rhode Island and Providence Plantations. The state of Pennsylvania is known officially as the Commonwealth of Pennsylvania. The state of Massachusetts is known officially as the Commonwealth of Massachusetts.
The state of Kentucky is known officially as the Commonwealth of Kentucky. Up to: a b c d e f g h i Area figures are rounded to the nearest whole number. metropolitan areas are not considered in this number. The largest city is the city in a state with the largest population in the city proper. Notes AMERICA HAS THE MORE NUMBER OF ROADS THEN ANY COUNTRY IN THE WORLD.
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