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VTT's nanosat hyperspectral camera remains stable after enduring one year of space weather and even a severe solar storm
02 October 2018
VTT's hyperspectral imager continues to observe the Earth on board the Aalto-1 nano-satellite. For hyperspectral imagers it is unique to reach such a small size and weight, and also to prove a capability to survive in harsh space conditions on-board a small satellite. It has even survived a grade X solar storm while still continuing to supply high-quality data.
The hyperspectral camera on Aalto-1 operates in a wavelength range of 500–900 nanometres and is half a cubesat unit (0.5U) in size, or 5 cm x 10 cm x 10 cm. While the camera is up in space, it has been possible to program the operation wavelengths from Earth, which makes it easy to scale the same camera hardware to enable different applications.
Image credit: VVT - Spectral image taken over central Africa shows and the Tshuapa river near Mbandaka. The "red edge" of vegetation is clearly visible: the reflectance of the forest rapidly increases around 700 nm. In the image 750 nm is visualized by red pixels, 670 nm by green pixels and 565 nm by blue pixels.