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IRIS Catches Thruster Jets in Action

IRIS Catches Thruster Jets in Action


Date: 10 December 2000
Satellite: XMM
Depicts: Plume of expelled gas, 11 December 15:22 CET
Copyright: ESA

The thruster unit on the service module appears as a protuberance behind the black thermal insulation and it occults part of the edge of the telescope sunshield. This picture shown was taken by IRIS (with an exposure of 14 ms) during the second firing of XMM's thrusters on December 11 at 15:22 CET.

During the firing, the thruster nozzles expel gas at high velocity which develops as a cloud, also called a plume. This is clearly visible in two lobes, of different sizes, one upwards and one slightly to the right.

Last Update: 1 September 2019
3-Dec-2021 16:18 UT

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