Another, more common, convention is to express longitude as 0 to 180 degrees East or West. Long March China's launch vehicle. An orbit in which the satellite completes one full orbit around the Earth in less than 225 minutes. An orbit with an inclination less than 45 degrees. Magnitude An indication of relative brightness of celestial onjects.
Smaller numbers are brighter.
Examples include GPS satellites at altitudes of 10,900 nautical miles. The Russian space station, which was launched in 1986. A Russian launch vehicle as well as a class of satellites in highly eccentric orbits. A highly eccentric orbit with an inclination of 63.4 degrees. The perigee stays in the same place at this inclination.