12:00 〜 12:15
[PEM15-12] Spin-modulated components in Electric Field Detector (EFD) of Plasma Wave Experiment (PWE) aboard the Arase satellite
キーワード:あらせ衛星、電場
The 8-Hz potential data measured by the electric field detector (EFD) on board the Arase satellite show spin-modulated distortions from sinusoidal signals due to spin motions. We analyze the influence of these distortions in measurements of DC field in the Earth's magnetosphere. The Arase satellite orbits the altitudes from the perigee of 460 km to the apogee of 32,000 with the inclination of 31°. Statistical data analysis shows asymmetries and pulsations of the probe potential surrounding the spacecraft to the spin axis.
The distortions cause miscalculations of DC- or low frequency electric fields in both the amplitudes and directions.
The distortions cause miscalculations of DC- or low frequency electric fields in both the amplitudes and directions.