Hyper-accurate clocks – the beating heart of Galileo


Galileo constellation
 
Artist's impression of the complete Galileo constellation of thirty satellites orbiting in three planes

Passive hydrogen maser under test
 
Engineering model of the GIOVE-B Passive Hydrogen Maser under test in the Telecom and Navigation Systems Laboratory at ESTEC.

GIOVE-B in orbit (artist's impression)
 
Artist's impression of GIOVE-B in orbit



Release date: 10 May 2007