The speed can t vary as long as the satellite has a constant orbital radius that is as long as it s going around in circles.
Gps satellite orbit speed.
The launch window opens at 9 43 p m.
The transmitted power requirement really isn t an issue.
The global positioning system gps originally navstar gps is a satellite based radionavigation system owned by the united states government and operated by the united states space force.
Since a sidereal day is about 4 minutes shorter than a solar day a gps satellite orbits once every 11 hours and 58 minutes.
The gps satellites are at roughly half geo height 20 000km vs 40 000km.
View pre launch news release 3.
If they were higher their antenna gain could be more the beam is narrower and still covers the earth and besides.
View pre launch news release 1.
View space force.
View pre launch news release 2.
The space force successfully launched the third gps iii satellite into orbit.
On december 23 2018 the first gps iii satellite was launched aboard a spacex falcon 9.
This equation holds for any orbiting object where the attraction is the force of gravity whether it s a human made satellite orbiting the earth or the earth orbiting the sun.
Relative to the earth gps satellites orbit twice in a sidereal day the length of time the stars instead of the sun take to return to the original position in the sky.
Gps block iiia is the first series of third generation gps satellites incorporating new signals and broadcasting at higher power levels.