ИСТИНА

In September 2021 a new optical complex including a high sensitive imaging photometer was installed in the Verkhnetulomsky observatory of the Polar Geophysical Institute. This instrument has an optical system that allows to measure near ultraviolet (NUV) atmospheric emission with a multi-anode photomultiplier tubes (PMT) matrix. High temporal resolution allows us to study fine structure of fast-changing aurora luminosity. This report will present results of case study of frequency analysis of pulsating auroras, which were registered in 2022 by optical complex mentioned above. These events have a variety of spatial-temporal patterns of emission during including characteristic examples of pulsating aurora. As the result these analysis algorithms will be used for the further operation of the imaging photometers system. The research is supported by a grant from the Russian Science Foundation (project No.22-62-00010).