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JOVIAN DREAMS
Gas Giant Spacecraft All Gassed Up
by Staff Writers
Titusville FL (SPX) Jul 11, 2011


Juno is nearly wrapped and ready for launch.

The Juno spacecraft completed hydrazine fuel loading, oxidizer loading and final tank pressurizations this week, and now the complete propulsion system is ready for the trip to Jupiter. The spacecraft is currently at the Astrotech processing facility in Titusville, Fla.

Hydrazine is the fuel of choice for most spacecraft because of its stored energy. When the fuel is mixed with the oxidizer, the liquid ignites in the propulsion system's main engine to perform the spacecraft's four large maneuvers. One of these maneuvers includes inserting the spacecraft into orbit around Jupiter in 2016.

With the fueling completion, the spacecraft is 99 percent ready for launch. Once the final thermal blanket closeouts and wet spin tests are complete, the spacecraft will be 100 percent ready for installation onto the Atlas 551 launch vehicle.

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Related Links
Juno at NASA
Juno at SWRI
Jupiter and its Moons
Explore The Ring World of Saturn and her moons
The million outer planets of a star called Sol
News Flash at Mercury






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JOVIAN DREAMS
Juno at T-Minus One Month For Jupiter Launch Window Opening
Pasadena CA (JPL) Jul 06, 2011
NASA's Juno spacecraft is 30 days before its first launch window opens. "The launch window is the length of time allotted every day for an attempt to launch the spacecraft," said Jan Chodas, Juno project manager from NASA's Jet Propulsion Laboratory in Pasadena, Calif. "The launch period is the period of time in days when everything is in the right place to get your mission off to th ... read more


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