Abstract
A 100mm-size cube satellite, KSAT2, was developed by the Kagoshima Satellite Development Team. The KSAT2 was successfully launched in February 2014; its operation period was about 80 days. We were in charge of its thermal design. In the space, KSAT2 measured its battery temperature, and transmitted the data to the earth station. In this study, we calculated the battery temperatures of KSAT2 and compared them with the measured values. The calculations were conducted for the two cases for the attitude of the KSAT2; one is the attitude which will experience a higher temperature (Case 1) and the other one is that will experience a lower temperature (Case 2). The calculated results show that, in Case 1, the calculated temperatures are around 20 ℃ higher than the measured values. In Case 2, the calculated temperatures roughly follow the measured values. Therefore, actual attitude of KSAT2 is considered to have been closer to the Case 2.
