Читать книгу Global Navigation Satellite Systems, Inertial Navigation, and Integration - Mohinder S. Grewal - Страница 24

GLONASS has 24 satellites, distributed approximately uniformly in three orbital planes (as opposed to six for GPS) of 8 satellites each. Each orbital plane has a nominal inclination of 64.8° relative to the equator, and the three orbital planes are separated from each other by multiples of 120° right ascension. GLONASS orbits have smaller radii than GPS orbits, about 25 510 km, and a satellite period of revolution of approximately 8/17 of a sidereal day.