Round Trip Time

In a satellite network, Round Trip Time (RTT) is the time required for a signal to travel from a terrestrial system up to the satellite and back, or for a signal to travel from a satellite down to a terrestrial system and back up to the satellite again.

Round Trip Time is limited by the speed of light. Round Trip Time will be shortest for a Low Earth Orbit (LEO) satellite and longest for a geostationary satellite.