content long 19-June-2013 09:59:39

Service Module

Propulsion

After injection into the L2 transfer orbit by the Soyuz-Fregat launcher, a chemical bi-propellant propulsion system (8 × 10 N) is used for the transfer phase. It will cover attitude acquisition, spin control, mid-course corrections, L2 orbit injection, and safe mode.

After arriving at L2, one redundant set of micro-propulsion thrusters will control the spin and precession motion of the spacecraft. Regular orbit maintenance will be performed by using the chemical propulsion thrusters.

The spacecraft uses a cold gas micropropulsion system for fine attitude control.

Last Update: 21 August 2012

For further information please contact: SciTech.editorial@esa.int

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