吉川研は衛星に搭載されている観測器の開発を行いました（詳しくは研究紹介のページへ）。宇宙空間から太陽系の惑星を観測する予定です。また、衛星の愛称は「ひさき（HISAKI）」に決まりました。参考資料

A paper on the ultra-compact probe EQUUREUS and its ultraviolet imaging device PHOENIX, developed by Assistant Professor Masaki Kuwahara of Rikkyo University and Associate Professor Kazuo Yoshioka of our laboratory, has been published in the Journal of Geophysical Research: Space Physics. Using a tiny telescope the size of a can of coffee, we have successfully imaged the entire Earth’s plasma sphere!   【The article information】 Kuwabara, M., Yoshioka, K., Hikida, R.,Murakami, G., Yoshikawa, I., Nakajima, S., et al. (2025). Global and sequentialimaging observation of the Earth’s plasmasphere by PHOENIX onboard EQUULEUS. Journal of Geophysical Research: Space Physics, 130,e2024JA033389. https://doi.org/10.1029/2024JA033389