A corrupted or partial filename from a server backup: avrora_deis_20240107062012-31_min.bak Where “deis” is a folder name (“DEIS” – Digital Enterprise Information Service).
The aurora is caused by charged particles from the sun interacting with the Earth's magnetic field and atmosphere. The sun's corona, its outer atmosphere, is constantly emitting electrons and protons, which are then carried towards the Earth by the solar wind. When these charged particles collide with the Earth's magnetic field, they are redirected towards the poles. avrora deis 20240107062012-31 Min