Monitoring of the solar activity with X-ray spectrometer onboard of the Yarilo CubeSat

The article considers the possibility of monitoring solar activity in the soft X-ray range on board the Yarilo nanosatellite. It is shown that, despite a number of technological difficulties associated with the features of nanosatellites, their use for solving such scientific problems has great prospects. Estimates of instrument dynamic range are given. The features of processing the output signal of the detector, the influence of temperature on its functioning, and ways to improve spectral resolution by optimizing the thermal interfaces of the device are considered.