KEY TERMS

• • Jupiter Orbit Insertion (JOI)

    Jupiter orbit insertion refers to the period of time during which the Juno spacecraft will arrive at the planet Jupiter and be captured by its gravity. The JOI maneuver is accomplished by approaching Jupiter over the north pole and then firing the spacecraft’s main engine for about 30 minutes. This is a critical event in the mission that slows Juno enough to become bound to Jupiter, like an artificial satellite.