Galileo infographic: 'Corrections from Earth'

Corrections from Earth: The remaining antenna is a small disc to the top right of the navigation antenna: this is the C-band antenna that receives navigation messages from the ground. Typically updated once every 45 minutes, these messages are crucial to maintaining Galileo’s accuracy. They incorporate corrections to any errors in the onboard atomic clocks or orbital changes of the satellites, as well as information on any satellites temporarily going out of service, to be retransmitted to user receivers within Galileo signals.

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