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Mercury Transfer Module solar wing inspection

Mercury Transfer Module solar wing inspection


Date: 17 July 2018
Satellite: BepiColombo
Location: Kourou, French Guiana
Copyright: ESA

The second of two solar arrays on the BepiColombo Mercury Transfer Module (MTM) undergoing final inspections and deployment before being folded and stowed for launch.

In this image, the solar array is attached to the MTM, which is out of view to the right, and engineers are carefully checking the alignment of the deployed array. Electrical tests and illumination tests were performed before folding the five-panel, 15 metre-long array and tensioning the cables ahead of one last deployment test.

After a final inspection, the solar array was folded again and a temporary protective red cover installed, concluding a successful test phase of the transfer module's solar arrays.

The MTM will carry the two science orbiters – ESA's Mercury Planetary Orbiter and JAXA's Mercury Magnetospheric Orbiter – to the innermost planet using solar electric propulsion along with gravity assist flybys at Earth, Venus and Mercury.

Shortly before arriving at Mercury in 2025, the MTM will separate and the two science orbiters will be captured into orbit together, before separating and moving into their respective orbits. Together they will provide the most up-to-date investigation of the least explored planet in the inner Solar System to date.

For more images of the launch preparations at Kourou visit the BepiColombo image gallery.

Last Update: 1 September 2019
18-Jun-2021 18:14 UT

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