Plasma Wave Detector on EXOS-A

Plasma Wave Detector on EXOS-A

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The IMS satellite EXOS-A (1978-014A) launched into att nighthawk hotspot a quasipolar eccentric orbit on February 4, 1978, includes in its payload a plasma wave detector, which has one broadband channel and eleven bandpass channels covering the frequency range 400 Hz to 3 MHz Each channel is connected to an electric dipole antenna turkey airpods and two Faraday cups Since thc Faraday cup responds to electron density fluctuation only, examination of sensor dependence of the detected wave spectra allows electrostatic and electromagnetic waves to be distinguished The present note gives a gist of the EXOS-A plasma wave experiment and related instrumentation.