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May 27 – June 2, 2013 / Vol 32, No 21 / Hawai`i Island, USA

24 May 2013, 20:30 UTC
May 27 – June 2, 2013 / Vol 32, No 21 / Hawai`i Island, USA
(200 words excerpt, click title or image to see full post)

Jupiter-Bound Juno Spacecraft Enters Next Cruise Phase, Heads Toward Earth Flyby Gravity Assist

The Juno spacecraft is entering ‘Inner Cruise 3′ phase on May 28. During this 161-day period the flight team, including PI Scott Bolton of Southwest Research Institute and Deputy PI John Connerney of Goddard Space Flight Center, will be focusing on the Earth flyby gravity assist scheduled for October 9. It will bring Juno within an altitude of about 500 km and boost its velocity by 7.3 km per second. Juno will pass behind the Earth as seen from the Sun and its three 9 m X 2.65 m solar arrays will not receive direct sunlight, for the first time, for 20 minutes. Three trajectory correction maneuvers are planned before the flyby and one after to place Juno in its final trajectory for Jupiter. At the time of the flyby, the 1,593-kg spacecraft with 29 sensors, 8 science instruments and 1 color camera will have traveled approximately 1.6B km, which is more than half of the mission route to Jupiter. 27 days after the flyby, on November 5, Juno will enter the final cruise phase, ‘Quiet Cruise,’ which will last 791 days. The US$1.1B NASA project, scheduled ...

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