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BepiColombo is Europe's first mission to Mercury. It will set off in 2014 (atop a Soyuz) on a journey to the smallest and least explored terrestrial planet in our Solar System. When it arrives at Mercury in November 2020, it will endure temperatures in excess of 350 °C and gather data during its 1 year nominal mission, with a possible 1-year extension. The mission comprises two spacecraft: the Mercury Planetary Orbiter (MPO) and the Mercury Magnetospheric Orbiter (MMO). BepiColombo is a joint mission between ESA and the Japan Aerospace Exploration Agency (JAXA), executed under ESA leadership.
The BepiColombo mission is based on two spacecraft:
Several launch methods have been extensively studied. In the selected scenario, BepiColombo will use the gravity of the Earth, Venus and Mercury in combination with the thrust provided by solar-electric propulsion (SEP). During the voyage to Mercury, the two orbiters and a transfer module, consisting of electric propulsion and traditional chemical rocket units, will form one single composite spacecraft. When approaching Mercury in 2020, the transfer module will be separated and the composite spacecraft will use rocket engines and a technique called 'weak stability boundary capture’ to bring it into polar orbit around the planet. When the MMO orbit is reached, the MPO will separate and lower its altitude to its own operational orbit. Observations from orbit will be taken for at least one Earth year with the possibility of an extension.
(off-topic: I was at ESTEC when they were doing some of these tests (mainly vibration tests) )
The BepiColombo mission is based on two spacecraft:
- a Mercury Planetary Orbiter (MPO); and
- a Mercury Magnetospheric Orbiter (MMO)
Several launch methods have been extensively studied. In the selected scenario, BepiColombo will use the gravity of the Earth, Venus and Mercury in combination with the thrust provided by solar-electric propulsion (SEP). During the voyage to Mercury, the two orbiters and a transfer module, consisting of electric propulsion and traditional chemical rocket units, will form one single composite spacecraft. When approaching Mercury in 2020, the transfer module will be separated and the composite spacecraft will use rocket engines and a technique called 'weak stability boundary capture’ to bring it into polar orbit around the planet. When the MMO orbit is reached, the MPO will separate and lower its altitude to its own operational orbit. Observations from orbit will be taken for at least one Earth year with the possibility of an extension.
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