Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 44, issue 2
Articles | Volume 44, issue 2
https://doi.org/10.5194/angeo-44-1131-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/angeo-44-1131-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 44, issue 2
Regular paper
 | 
20 Oct 2026
Regular paper |  | 20 Oct 2026

The JUICE Lunar–Earth gravity assist from trajectory design, navigation and spacecraft operations perspective

Angela Dietz, Arnaud Boutonnet, and Frank Budnik

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Short summary
ESA's Jupiter Icy Moons Explorer (JUICE) spacecraft performed the first-ever Lunar–Earth Gravity Assist (LEGA) on 19–20 August 2024, executing a double flyby – first the Moon, then Earth – to gain a significant ΔV boost while conserving propellant. This paper describes this manoeuvre from trajectory design, navigation and spacecraft operations point of view.
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The first-ever lunar–Earth flyby: a unique test environment...