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MERCURY RISING
Preparing for Mercury: BepiColombo stack completes testing
by Staff Writers
Paris (ESA) Jul 07, 2017


The final 'qualification and acceptance review' of the mission is foreseen for early March. Then BepiColombo will be flown to Europe's Spaceport in Kourou, French Guiana, in preparation for the October 2018 departure window. The date will be confirmed later this year.

ESA's Mercury spacecraft has passed its final test in launch configuration, the last time it will be stacked like this before being reassembled at the launch site next year.

BepiColombo's two orbiters, Japan's Mercury Magnetospheric Orbiter and ESA's Mercury Planetary Orbiter, will be carried together by the Mercury Transport Module. The carrier will use a combination of electric propulsion and multiple gravity-assists at Earth, Venus and Mercury to complete the 7.2 year journey to the Solar System's mysterious innermost planet

Once at Mercury, the orbiters will separate and move into their own orbits to make complementary measurements of Mercury's interior, surface, exosphere and magnetosphere. The information will tell us more about the origin and evolution of a planet close to its parent star, providing a better understanding of the overall evolution of our own Solar System.

To prepare for the harsh conditions close to the Sun, the spacecraft have undergone extensive testing both as separate units, and in the 6 m-high launch and cruise configuration.

One set of tests carried out earlier this year at ESA's technical centre in the Netherlands focused on deploying the solar wings, and the mechanisms that lock each panel in place. The 7.5 m-long array of the Mercury Planetary Orbiter and the two 12 m-long array of the Mercury Transport Module will be folded while inside the Ariane 5 rocket.

Last month, the full spacecraft stack was tested inside the acoustic chamber, where the walls are fitted with powerful speakers that reproduce the noise of launch.

Just last week, tests mimicked the intense vibrations experienced by a satellite during launch. The complete stack was shaken at a range of frequencies, both in up-down and side-to-side motions.

These were the final tests to be completed with BepiColombo in mechanical launch configuration, before it is reassembled again at the launch site.

In the coming weeks the assembly will be dismantled to prepare the transfer module for its last test in the thermal-vacuum chamber. This will check it will withstand the extremes of temperatures en route to Mercury.

The final 'qualification and acceptance review' of the mission is foreseen for early March. Then BepiColombo will be flown to Europe's Spaceport in Kourou, French Guiana, in preparation for the October 2018 departure window. The date will be confirmed later this year.

"This week was the last opportunity to see the spacecraft in its stacked launch configuration before it leaves Europe. The next time will be when we are at the launch site already fueled," says Ulrich Reininghaus, ESA's BepiColombo Project Manager.

"This is quite a milestone for the project team. We are looking forward to completing the final tests this year, and shipping to Kourou on schedule."

MERCURY RISING
3D Navigation Tool Among MESSENGER's Final Data Products
Laurel, MD (SPX) May 19, 2017
NASA's MESSENGER mission to Mercury has released an updated ACT-QuickMap tool with new 3D navigation capabilities as illustrated by this "fly around" view of the Caloris impact basin. This update was among the new and improved products released by the agency's Planetary Data System (PDS), an organization that archives and distributes all U.S. planetary mission data. With this 16th data rel ... read more

Related Links
BepiColombo at ESA
News Flash at Mercury
Mars News and Information at MarsDaily.com
Lunar Dreams and more


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