ESA title

The mission

The Celeste LEO-PNT in-orbit demonstrator mission will feature a 11-satellite constellation that will fly close to Earth to test innovative signals across various frequency bands. It will assess how a low Earth orbit fleet can work in combination with Galileo, EGNOS and other GNSS in a multi-layer approach to optimise the provision of services, increasing overall PNT resilience and robustness, and enabling new services.

FutureNAV

ESA’s Celeste LEO-PNT in-orbit demonstration mission is central to FutureNAV, a programme that enables the agency to respond to trends and needs in the field of navigation, ultimately allowing Europe to stay on the cutting edge of satellite navigation technology.

Celeste

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Celeste in-orbit demonstration satellites orbiting
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ESA's Celeste demonstrates 5G positioning signals from low …

15/09/2026 1012 views 9 likes
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ESA’s Celeste broadcasts first navigation signal
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ESA’s Celeste broadcasts first navigation signal from low E…

10/04/2026 5151 views 44 likes
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Liftoff for Celeste on Rocket Lab's Electron rocket
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Celeste’s first satellites launched to explore LEO-based sa…

28/03/2026 5500 views 57 likes
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Celeste IOD-1 and 2 on Electron's kick stage (artist impression)
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Watch live: First Celeste launch

27/03/2026 12544 views 137 likes
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Celeste IOD-1 separating from Electron (artist impression)
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Follow the Celeste launch campaign

04/03/2026 3775 views 41 likes
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About Celeste