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Earth, Planets and Space
Fig. 8 | Earth, Planets and Space

Fig. 8

From: Wire Probe Antenna (WPT) and Electric Field Detector (EFD) of Plasma Wave Experiment (PWE) aboard the Arase satellite: specifications and initial evaluation results

Fig. 8

Electric field data of PWE before, during, and after the WPT-S deployment operation on a January 13–14, 2017, and b January 15, 2017. From the top, HFA spectrum (10 kHz to 10 MHz) (dt: 1 s), OFA-E spectrum (100 Hz to 20 kHz) (dt: 1 s), EFD E v spectrum at 1–224 Hz (dt: 1 s), EFD 64 Hz electric field waveform of E u (black) and E v (red), and EFD 8 Hz spacecraft potential waveform of V u1 (black), V u2 (red), V v1 (blue), and V v2 (green) are shown. Although the antenna is not fully extended in these durations, the data are tentatively calibrated with the assumed effective antenna length of ~ 30 m

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