Satellite engineer or surgeon?

As part of the campaign to launch ESA's Aeolus satellite on 21 August, engineers have been busy with a series of 'functional tests'. This included tests on the pressure of the propulsion tanks, piping, valves, filters and thrusters. The most recent tests included working on the radiator. The photo shows one of the satellite engineers taking a very careful look here. He looks a bit like a surgeon!