日本地球惑星科学連合2018年大会

講演情報

[EE] Eveningポスター発表

セッション記号 P (宇宙惑星科学) » P-CG 宇宙惑星科学複合領域・一般

[P-CG21] 宇宙・惑星探査の将来計画と関連する機器開発の展望

2018年5月21日(月) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 7ホール)

コンビーナ:亀田 真吾(立教大学理学部)、笠原 慧(東京大学)、尾崎 光紀(金沢大学理工研究域電子情報学系、共同)、吉岡 和夫(東京大学大学院新領域創成科学研究科)

[PCG21-P06] The Circumpolar Stratospheric Telescope FUJIN for Observations of Planets

*田口 真1高橋 幸弘2今井 正尭2中野 壽彦3莊司 泰弘4白藤 祐稀子1 (1.立教大学、2.北海道大学、3.大分工業高等専門学校、4.大阪大学)

In order to understand physical phenomena in the planetary atmospheres and plasmas continuous monitoring of their temporal variations and evolutions is necessary. A balloon-borne telescope system has been developed for a new platform of optical remote sensing of them from the polar stratosphere. Especially in the polar region a planet can be monitored from a balloon-borne telescope all day long for a selected observation period. The project name is FUJIN or the god of wind in Japanese. FUJIN-2 is equipped with a 400 mm Cassegrainian telescope with a Nasmyth focus, and lifted by a scientific balloon up to the stratosphere where atmospheric seeing and transmittance, especially in the near ultraviolet and infrared regions, are much better than the ground level. Attitude of the gondola of FUJIN-2 is controlled by a three-axis stabilized system with an active decoupling motor, a pair of control moment gyro and sun sensors. We are planning a long duration flight from ESRANGE in Kiruna in Sweden in 2020 for the earliest case. Westward trans-Atlantic or circumpolar flights during summer season realize a continuous observation of planets for about a week or three weeks, respectively. FUJIN-2 can also be used as a mobile observatory for a transient object like a comet.