This study examines auroral colour camera data from the Canadian Dense Array Imaging SYstem (DAISY). The Dense Array consists of three imagers with different narrow (compared to all-sky view) field-of-view optics. The main scientific motivation arises from an earlier study by Knudsen et al. https://www.bekindtopets.com/hot-super-Chervo-Marco-Jacke-Herren-limited-grab/