From Wiki:
Juno uses a bipropellant LEROS 1b main engine, manufactured by Moog Inc in Westcott, Buckinghamshire in England.[83] It uses hydrazine and nitrogen tetroxide for propulsion and provides a thrust of 645 newtons. The engine bell is enclosed in a debris shield fixed to the spacecraft body, and is used for major burns. For control of the vehicle’s orientation (attitude control) and to perform trajectory correction maneuvers, Juno utilizes a monopropellant reaction control system (RCS) consisting of twelve small thrusters that are mounted on four engine modules.[79]
Moog is an American company and has a lot of experience with spacecraft.
So if they are not going to fire the main engine does that mean the spacecraft will remain in Jupiter’s orbit for the rest of its life?
Interesting