May 4, 2018

Tracking the sun

Our planet's climate is shaped by a complex interplay between the absorption and reflection of solar radiation. An important variable in this is Total Solar Irradiance (TSI), which exhibits variations based on sun activity and in this way could ideally even contribute to slowing down global warming.

To record this variability, the «Compact Lightweight Absolute Radiometer» (CLARA) has been journeying through space since mid-August 2017 on board the Norwegian microsatellite NorSat-1 (Figure 4). Torsional ultrasonic welding technology made an important  contribution to its manufacture.

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