Cleaning of Venus Express high-resolution magnetometer data and observations of large scale field rotations in the magnetosheath

Details Cleaning of Venus Express high-resolution magnetometer data and observations of large scale field rotations in the magnetosheath Cleaning of Venus Express high-resolution magnetometer data and observations of large scale field rotations in the magnetosheath

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p33a1273d&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #P33A-1273

Physics

Plasma Physics

[2780] Magnetospheric Physics / Solar Wind Interactions With Unmagnetized Bodies, [6295] Planetary Sciences: Solar System Objects / Venus, [7894] Space Plasma Physics / Instruments And Techniques

Scientific paper

Venus Express is a magnetically unclean spacecraft. Thus far only low-resolution (1Hz) data has been successfully cleaned of spacecraft disturbances. New software has been developed specifically for high-resolution (32Hz) data cleaning where spacecraft events are identified via a statistical approach and field corrections are implemented by a combination of empirical and statistical models. This poster gives a summary of the cleaning methodology. The cleaned high-resolution data is used to examine the rotation of the magnetic field observed during several large vortices in the Venusian magnetosheath. During an encounter with the vortex three types of rotations are observed, namely gradual rotation, reverse rotation and a rapid rotation. These characteristics are investigated in greater detail.

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