Jupiter Icy Moons Explorer

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details about the Venus flyby

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Revision as of 08:36, 2 September 2025
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[td]=== Venus flyby ===[/td]
[td]=== Venus flyby ===[/td]
[td]On 16 July 2025, during a time-sensitive period before the planned [[Venus]] flyby, ''Juice'' experienced a communication anomaly that temporarily severed the spacecraft's contact with Earth. After almost 20 hours of recovery efforts, [[European Space Operations Centre|ESOC]] and [[Airbus]] managed to resolve the issue and identified its root cause related to a scheduled restart of the spacecraft's internal timer. Plans for the flyby remained unchanged<ref name=":4">{{Cite web |title=Juice team resolves anomaly on approach to Venus |url=https://www.esa.int/Enabling_Support/Operations/Juice_team_resolves_anomaly_on_approach_to_Venus |access-date=2025-08-25 |website=www.esa.int |language=en}}</ref> and ''Juice'' successfully flew by Venus at 05:28 UTC on 31 August 2025, performing a [[gravity assist]] maneuver that sent it towards its second Earth flyby planned for September 2026.<ref name=":3">[https://bsky.app/profile/operations.esa.int/post/3lxrcin7z522v Flyby success! ESA's Juice spacecraft passed Venus at 07:28 CEST on 31 August.]</ref> Due to thermal constraints, no imaging or scientific observations were planned for the Venus flyby and the spacecraft used its high-gain antenna as a thermal shield during the maneuver.<ref name=":4" />[/td]
[td]On 16 July 2025, during a time-sensitive period before the planned [[Venus]] flyby, ''Juice'' experienced a communication anomaly that temporarily severed the spacecraft's contact with Earth. After almost 20 hours of recovery efforts, [[European Space Operations Centre|ESOC]] and [[Airbus]] managed to resolve the issue and identified its root cause related to a scheduled restart of the spacecraft's internal timer. Plans for the flyby remained unchanged<ref name=":4">{{Cite web |title=Juice team resolves anomaly on approach to Venus |url=https://www.esa.int/Enabling_Support/Operations/Juice_team_resolves_anomaly_on_approach_to_Venus |access-date=2025-08-25 |website=www.esa.int |language=en}}</ref> and ''Juice'' successfully flew by Venus on 31 August 2025, with the closest of 5088 km above Venus's surface at 05:28 UTC, performing a [[gravity assist]] maneuver that increased its velocity by 5.1 km/s and sent it towards its second Earth flyby planned for September 2026. Due to thermal constraints ([[solar flux]] of 3000 W/mΒ² near Venus versus 50 W/mΒ² near Jupiter), no imaging or scientific observations were planned for the Venus flyby and the spacecraft used its high-gain antenna as a thermal shield, pointing it toward the Sun.<ref name=":3">[https://bsky.app/profile/operations.esa.int/post/3lxrcin7z522v Flyby success! ESA's Juice spacecraft passed Venus at 07:28 CEST on 31 August.]</ref><ref>{{Cite web |last=Sarri |first=Giuseppe |date=2025-09-01 |title=JUICE FlyBy of Venus: Spacecraft Survives Hellish Heat on the Way to Icy Moons |url=https://orbitaltoday.com/2025/09/01/esa-juice-flyby-of-venus-on-the-way-to-icy-moons/ |access-date=2025-09-02 |website=Orbital Today |language=en-US}}</ref>[/td]
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[td]== Trajectory ==[/td]
[td]== Trajectory ==[/td]

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