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Europe's New Space Navigation: Celeste LEO Satellites Launch
30 Mar
Summary
- ESA launched two Celeste satellites from New Zealand on March 28.
- The mission aims to demonstrate a new low Earth orbit layer for navigation.
- A constellation of 11 satellites is planned by the end of 2027.

On March 28, the European Space Agency (ESA) successfully launched the first two satellites of its Celeste in-orbit demonstration (IOD) mission from New Zealand using a Rocket Lab Electron launcher. These satellites have entered a quasi-polar low Earth orbit and signal acquisition has been confirmed.
The Celeste mission is designed to evaluate the advantages of adding a low Earth orbit (LEO) layer to the existing Galileo navigation system. This initiative is a crucial step towards establishing a fully operational PNT constellation in LEO by 2030. The current IOD phase involves launching a total of 12 satellites, including a spare, by the conclusion of 2027.
These initial satellites, IOD-1 and IOD-2, will test key technologies and new signals necessary for the mission's operational phase. Future launches will introduce more sophisticated and larger satellites equipped with advanced payloads and an expanded range of frequencies. This development signifies Europe's commitment to continuously evolving its world-leading PNT infrastructures.