Japan Geoscience Union Meeting 2024

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[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Coupling Processes in the Atmosphere-Ionosphere System

Thu. May 30, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Keisuke Hosokawa(Department of Communication Engineering and Informatics, University of Electro-Communications), Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Loren Chang(Department of Space Science and Engineering, National Central University)

5:15 PM - 6:45 PM

[PEM12-P37] Upper Atmosphere Density Measurement Using Satellite Temperature Sensor and Evaluation of the Influence of Magnetic Disturbances

*Haruo Kawasaki1 (1.Japan Aerospace Exploration Agency)

Keywords:Satellite, Upper Atmosphere Density, Temperature Sensor

The Super Low Altitude Test Satellite: “TSUBAME“ (SLATS) operated at an altitude of less than 220 km from July to October 2019.A bumper was attached to the proceeding direction of this satellite, and the bumper was covered with multi-layer insulation (MLI). A temperature sensor was attached to the thermal control film, which was the outermost layer of the MLI.This temperature sensor can measure temperature changes caused by free molecule heating in the upper atmosphere, as well as the effects of direct sunlight, Earth's albedo, and Earth's infrared radiation.The presentation at JPGU in 2023 analyzed and reported atmospheric density changes and magnetic disturbances over a period of about one week at altitudes below 190 km.This year, we will expand the analysis period and report on atmospheric density changes and magnetic disturbances over a two-month period at altitudes below 220 km. In addition, this time, we attempted to clarify the influence of free molecule heating more clearly by comparing the results of in-orbit thermal analysis without the influence of free molecule heating with the temperature changes in orbit.