Auroral imaging with combined Suomi 100 nanosatellite and ground‐based observations: A case study

Auroras can be regarded as the most fascinating manifestation of space weather and they are continuously observed by ground-based and, nowadays more more, also space-based measurements. Investigations auroras geospace comprise main research goals Suomi 100 nanosatellite, first Finnish satellite, which has been measuring Earth's ionosphere since its launch on Dec. 3, 2018. In this work, we present a case study where satellite's camera observations an aurora over Northern Europe combined with same event. The analyzed image is, to authors' best knowledge, auroral ever taken cubesat. Our data analysis shows that satellite vantage point provides complementary, novel information such phenomena. 3D location reconstruction event demonstrates how from 2D used provide under study. modelling suggests limb direction, was in image, is ideal direction observe faint auroras. Although imaging small some large disadvantages compared (the cannot repaired, fast moving spinning satellite), demonstrate even 1-Unit (size: 10 cm x cm) CubeSat camera, build using cheap commercial off-the-shelf components, open new possibilities for research, especially, when measurements observations.