Electromagnetic waves observed by Venus Express at periapsis: Detection and analysis techniques |
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| Authors: | CT Russell TL Zhang RJ Strangeway HY Wei M Delva W Magnes |
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| Institution: | 1. Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, USA;2. Space Research Institute, Austrian Academy of Sciences, Graz A-8042, Austria |
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| Abstract: | The magnetometer on Venus Express was designed to be able to obtain 128 Hz samples of the magnetic field from two sensors in a gradiometer configuration. This mode is used around periapsis to determine whether the signals reported at low altitudes near 100 Hz, had the properties of electromagnetic waves generated by electric discharges in the Venus atmosphere. The lack of a magnetic cleanliness program and the shortness of the magnetometer boom make this a challenging measurement. Fortunately the signals are sufficiently strong that they can be easily resolved with rather straightforward analysis techniques. |
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| Keywords: | Lightning Venus Express Electromagnetic wave observation Venus atmosphere |
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