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Juno Mission


TechNical Aspects

Why i choose this mission

Mission goal

Mission goal

  • Start: 5 august 2011
  • Jupiter arrival: July 2016
  • End: september 2025
  • Origin and evolution
  • Provide critical knowledge
  • Gravity and magnetic fields

-165.000 MPH-Spinning solar-powered spacecraft-

TeChNical Aspects

Why i choose this mission

Juno uses a spinning, solar-powered spacecraft in a highly elliptical polar orbit that avoids most of Jupiter’s high-radiation regions. The designs of the individual instruments are straightforward, and the mission did not require the development of any new technologies. For Juno, like NASA’s earlier Pioneer spacecraft, spinning makes the spacecraft’s pointing extremely stable and easy to control. Just after launch, and before its solar arrays are deployed, Juno will be spun up by rocket motors on its still-attached second-stage rocket booster. Juno’s planned spin rate varies during the mission: 1 RPM for cruise, 2 RPM for science operations, and 5 RPM for main engine maneuvers.