That means the spacecraft has finished re-orienting itself toward the Sun and is operating with solar power.
Where are the photos from the spacecraft? The cameras were switched off during the orbit insertion but Nasa promises great photos as it gets closer and closer to the planet.
11:50
Juno now orbiting Jupiter
AFP – NASA's unmanned Juno spacecraft on Monday began orbiting Jupiter, a key triumph for a $1.1 billion mission that aims to uncover the origins of the biggest planet in the solar system.
"Welcome to Jupiter," said a commentator at mission control at NASA's Jet Propulsion Laboratory in Pasadena, California.
The room erupted in cheers as the solar observatory successfully entered its aimed-for orbit around Jupiter at 11:53 pm (0353 GMT Tuesday).
The spacecraft has traveled 1.7 billion miles (2.7 billion kilometers) since it launched five years ago from Cape Canaveral, Florida.