Press release
25KB
febbraio 23, 2016 - European Space Agency
ESA - Fuelling the Trace Gas Orbiter
Comunicato Stampa disponibile solo in lingua originale.
Press release available only in original language.
The #exomars2016 Trace Gas Orbiter being fuelled at the Baikonur cosmodrome in Kazakhstan.
In March, Europe’s new era of Mars exploration begins with the launch of the Trace Gas Orbiter (TGO) and #schiaparelli. After a seven-month journey through space, #schiaparelli will separate from the orbiter on 16 October and head towards the planet’s surface, where it will land three days later, on Meridiani Planum.
Meanwhile, the orbiter will begin to manoeuvre into orbit and, after a year of aerobraking, will begin science operations.
Any long journey requires an ample supply of fuel and, 21 February, fuelling of TGO began. This spacecraft has one fuel tank and one oxidiser tank, each with a capacity of 1207 litres. When fuelling is complete, the tanks will contain about 1.5 tonnes of MON (mixed oxides of nitrogen) and 1 tonne of MMH (monomethylhydrazine).
The propellant is needed for the main engine and the 10 thrusters (plus 10 backup thrusters) that are used for fine targeting and critical manoeuvres.
Even the propellants have had a long journey: both were procured via Gerling Holz in Germany, brought by ship to St Petersburg in Russia, and then by train to the cosmodrome, in Kazakhstan.
Since fuelling is a hazardous exercise, only essential staff – wearing protective suits – are allowed in the fuelling area. A team from Thales Alenia Space France is in Baikonur to take care of TGO fuelling, as they did for #schiaparelli. While this activity is under way, the fire brigade, doctor, security and safety officers are on hand.
The launch window for the Trace Gas Orbiter and #schiaparelli is open 14–25 March 2016.
Fuelling_the_Trace_Gas_Orbiter
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Schiaparelli_on_Trace_Gas_Orbiter
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Trace_Gas_Orbiter_with_Schiaparelli
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