Name Yarilo
Type CubeSat
Units or mass 1.5U
Organisation Bauman Moscow State Technical University
Institution University
Entity Academic / Education
Nation Russia
Oneliner Continuous monitoring of solar activity and a solar sail for orbit control.
Results No more than 20% of radio packets are decrypted on the MCC. The main reason is a drop in the output power of the transmitter during transmitting a radio package. The reason is the degradation of the output microwave switch that the antenna between the power amplifier and the receiving path. Due to degradation, the SWR of the line deteriorated and the signal reflected from the microwave switch leads to self-excitation of the power amplifier, followed by a sharp increase in power consumption and a drawdown of the power supply voltage, which leads to a decrease in the output power of the amplifier. The process is repeated. The magnetic orientation system is functioning, but the solar orientation is not built. There is not enough data to analyze the causes yet. The orientation system on the flywheel engines did not turn on. The operability of both technological cameras was confirmed after ~11 months of flight (Fig. 15). The data is transmitted in full but is damaged when transmitted over the radio channel. The selected format for storing and transferring photos is wrong (JPG). We plan to update the onboard software for data transmission in RAW format
Sources [1] [2] [3] [4] [5] [6] [7] [8]
Keywords Solar sail, Propulsion

Related Spacecraft

Name Status Launch Orbit
Yarilo N1 (Yarilo-1, Yareelo, Yareelo-1 Yarilo A, Yarilo No. 1, Yareelo №1, BMSTU-Sail) Operational (IAC manuscript on 2021-10-29) 2020-09-28 560 km, 97.7 deg
Yarilo N2 (Yarilo-2, Yareelo, Yareelo-2, Yarilo B, Yarilo No. 2, Yareelo №2, BMSTU-Sail) Operational (IAC manuscript on 2021-10-29) 2020-09-28 560 km, 97.7 deg

Last modified: 2022-01-01
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