Masahi Kamogawa, Jann-Yenq Liu, Masahiko Yamazaki, Hybrid probes of DC-HF electric-field and plasma measurement for more than 6U CubeSat and parasitic payload of small satellite observing atmospheric and space electricity: Development for the flight model in JAXA’s Innovate Satellite Technology Demonstration-4, WNI WxBunka Foundation Asia-Pacific region project furtherance, 2023.