Satellite delay is the noticeable latency due to the limited speed of light, when sending data to and from satellites, especially distant geosynchronous satellites. Bouncing a signal off a geosynchronous satellite takes about a quarter of a second, which is enough to be noticeable, but relaying data between two or three such satellites increases the delay.[1]
Original source: https://en.wikipedia.org/wiki/Satellite delay.
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