Tag Archives: insulation

MetOp readied for fuelling

From Damiano (ESA), Baikonur 17 April The MetOp launch campaign has now reached the end of the first preparation phase during which a number of activities have been successfully carried out. Straight after the arrival at the Baikonur Cosmodrome, the MetOp Payload Module and the Service Module were mated together. MetOp was then tested to verify the health of the instruments and equipment onboard. Following the functional verifications, we have performed some mechanical verification. The building up of the spacecraft has continued with the integration of the solar array, the pyrotechnical devices and the finalisation of the thermal blankets – the multilayer insulation. To close this first phase of operations, we performed...

MetOp wrapped

From Sylvain (ESA), Baikonur, 11 April Temperature control is very important to ensure that all of MetOp’s electronics and instruments function optimally in space. When in orbit around Earth, the satellite passes between sunlight and shadow. Consequently, it has to withstand extreme swings in temperature: from below –100° C to above 100°C. This is why a dedicated thermal design was chosen to keep the electronics within a more ‘gentle’ range of temperatures, generally between 0–20°C. This is done by using a combination of active thermal control measures such as electrical heaters and passive methods such as space-qualified paints, tapes and multilayer insulation (MLI), essentially on the external surfaces of the satellite. The MLI...