| 摘要 |
The invention relates to a satellite, intended to be placed in a station in orbit about a celestial body, including a first electrical thruster (21) of orientatable thrust direction, a second electrical thruster (22) of orientatable thrust direction, and an electrical thruster (16) of orientation that is fixed with respect to the satellite and of line of thrust passing through the centre of gravity of the satellite. Said satellite includes two electrical-thruster power units (25, 26) and an electrically interconnecting network (23) connecting a first power unit (26) to the first thruster (21) of orientatable thrust direction and to the thruster (16) of fixed orientation, and a second power unit (25) to the second thruster (22) of orientatable thrust direction and to the thruster (16) of fixed orientation, so that each of the power units (25, 26) is able to power either the associated thruster (22, 21) of orientatable thrust direction or the thruster (16) of fixed orientation. |
