ESA Juice spacecraft performs gravity assist 8,640 km above Indian Ocean
GS3Economy · S&T · Environment · Security· Space technology (ISRO, missions)· Prelims·
Space technology and orbital mechanics: a key GS3 topic regarding deep-space exploration efficiency.
Why in news
ESA's Juice spacecraft performed a gravity assist maneuver over the Indian Ocean to increase its velocity and trajectory for its mission to Jupiter.
Background
The Juice (Jupiter Icy Moons Explorer) spacecraft performed a gravity assist at 13:45 CEST on September 28, 2026, at an altitude of 8,640 km above the Indian Ocean. The maneuver resulted in a 20-degree trajectory deflection and a speed increase of 3.5 km/s.
Facts for Prelims
- S&TJuice (Jupiter Icy Moons Explorer) is a spacecraft mission by the European Space Agency (ESA).
- FactThe gravity assist maneuver on September 28, 2026, increased the spacecraft's speed by 3.5 km/s.
- FactThe spacecraft's closest approach was 8,640 km above the Indian Ocean.
- S&TGravity assist (gravity slingshot) uses a planet's gravitational pull and orbital motion to change a spacecraft's speed and direction without consuming onboard fuel.
- FactJuice is scheduled to orbit Jupiter in 2031 and Ganymede in 2034.
Prelims practice question
With reference to the Juice (Jupiter Icy Moons Explorer) mission, consider the following statements:
- The gravity assist maneuver over the Indian Ocean resulted in a speed increase of 3.5 km/s.
- The Juice spacecraft is a mission conducted by the Indian Space Research Organisation (ISRO).
- The spacecraft is scheduled to orbit Jupiter in the year 2025.
Which of the statements given above is/are correct?
- (a)1 only
- (b)2 only
- (c)1 and 2 only
- (d)1, 2 and 3
Show answer
Answer: (a) 1 only — Statement 1 is correct. Statement 2 is incorrect: It is a mission by the European Space Agency (ESA). Statement 3 is incorrect: It is scheduled to orbit Jupiter in 2031.
For Mains
Q. Discuss the significance of gravity assist maneuvers in deep-space exploration and how they optimize fuel efficiency for interplanetary missions.
Dimensions to cover in your answer
- Fuel optimization: Utilizing planetary orbital energy to achieve high velocities for outer solar system exploration
- Navigation precision: Reducing the necessity for active engine burns through high-accuracy trajectory planning
Keywords: Gravity Assist · Space Exploration · Orbital Mechanics · Juice Mission · Propellant Conservation
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This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.