日本地球惑星科学連合2021年大会

講演情報

[E] 口頭発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM11] Coupling Processes in the Atmosphere-Ionosphere System

2021年6月4日(金) 09:00 〜 10:30 Ch.05 (Zoom会場05)

コンビーナ:Liu Huixin(九州大学理学研究院地球惑星科学専攻 九州大学宙空環境研究センター)、Chang Loren(Institute of Space Science, National Central University)、大塚 雄一(名古屋大学宇宙地球環境研究所)、Yue Deng(University of Texas at Arlington)、座長:陣 英克(情報通信研究機構)、齊藤 昭則(京都大学大学院理学研究科地球物理学教室)

10:15 〜 10:30

[PEM11-30] Mission Concept, Development, and First Results from IDEASSat/INSPIRESat-2 – Lessons Learned from Building a 3U CubeSat for Ionospheric Observations

★Invited Papers

*Loren Chang1、Chi-Kuang Chao1、Yi-Chung Chiu1、Yi Duann1、Tzu-Ya Tai1、Kai-Lun Cheng1、Hsin-Tzu Liu1、Kai-Jye Hou1、Wei-Hao Luo1、Chi-Ting Liao1、Rong Tsai-Lin1、Kuan-Po Chiu1、Pin-An Lin1、Glenn Franco Gacal1、Sittinat Denduonghatai1、Ruo-Yu Wang1、Yu-Shun Wang1、Tsai-Ru Yu1、Jann-Yenq Liu1、Amal Chandran2、Priyadarshan Hari3、Mustapha Meftah4 (1.Department of Space Science and Engineering, National Central University, Taiwan、2.Satellite Research Centre, Nanyang Technological University, Singapore、3.Department of Avionics, Indian Institute of Space Science and Technology, Kerala, India、4.LATMOS, France)

キーワード:Ionosphere, Scintillation, CubeSat

In-situ measurements of ionospheric parameters can provide valuable observations for quantifying ionospheric variability that are not available via ground-based observations. However, such in-situ observations are constrained by the limited number of satellite platforms available. The Ionospheric Dynamics and Attitude Subsystem Satellite (IDEASSat) is a 3U CubeSat carrying a Compact Ionospheric Probe (CIP) with heritage from the Advanced Ionospheric Probe (AIP) aboard the FORMOSAT-5 large satellite mission. CIP will provide in-situ measurements of ion temperature, density, composition, velocity, and electron temperature. The spacecraft was developed by National Central University (NCU) in Taiwan, with additional development and operational support from partners in the International Satellite Program in Science and Education (INSPIRE) consortium.



IDEASSat was launched successfully on January 24, 2021 aboard the SpaceX Falcon 9 Transporter 1 flight. The spacecraft was deployed into a 525 km quasi-Sun synchronous orbit (SSO) in an orbit plane within 2 hours local time of FORMOSAT-5, located in an SSO at 720 km. This allows for multipoint observations in a similar orbital plane at different altitudes, which can be utilized to examine the vertical structure and evolution of scintillation-inducing ionospheric irregularities, such as equatorial plasma bubbles.



As the first spacecraft developed at NCU, lessons learned during the development, integration, and operation of IDEASSat have proven to be crucial to the objective of developing small satellites as a platform for scientific observations. In this presentation, we will also report on experiences and anomalies encountered during the final flight model integration, as well as post-launch commissioning, operations, and first results. It is hoped that the lessons learned reported here will be helpful for other university teams working to utilize small satellites as observational platforms for upper atmospheric space science.