[P-EM19] Dynamics of the Inner Magnetospheric System

[PEM19-P07] Subtraction of spurious sunward electric field component from GEOTAIL EFD observation

*Tomoko Nakagawa¹, Ayako Matsuoka², Iku Shinohara³, Yoshifumi Saito³, Yasumasa Kasaba⁴ (1. Information and Communication Engineering, Tohoku Institute of Technology, 2. Kyoto University, 3. ISAS, 4. Tohoku University)

Keywords:Electric field measurement, double probe method, magnetosphere, photoelectrons, GEOTAIL, spacecraft electric potential