Waves and plasma in the Earth's plasmasphere as seen by the mutual impedance probe onboard ROSETTA

Details Waves and plasma in the Earth's plasmasphere as seen by the mutual impedance probe onboard ROSETTA Waves and plasma in the Earth's plasmasphere as seen by the mutual impedance probe onboard ROSETTA

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsm31b..01t&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SM31B-01

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2799 General Or Miscellaneous

Scientific paper

On 04 March 2005, the European Space Agency's Rosetta spacecraft performed a swing-by at planet Earth. It approached from away from the Sun and had its closest approach at 1955 kilometers to the surface, on the illuminated side of the Earth. This is the first of four planet swing-bys that Rosetta has to carry out in its long journey to its target comet 67P/Churyumov-Gerasimenko, the nucleus of which being reached in 2014, orbited and a Lander, dubbed Philae, delivered on it. On 13 November 2007, nine months after the Mars gravity assist that occurred on 25 February 2007, as close as 200 km from the planet surface, Rosetta went through the second Earth fly-by maneuver that boosted the spacecraft towards a new and larger orbit around the Sun. This time, Rosetta went down at an altitude of 5300 kilometers over the South Pacific. Rosetta will return for yet another and last planetary boost on 13 November 2009, at 2500 kilometer altitude above the Earth, after visiting the 2867/Steins asteroid on 5 September 2008. A last asteroid fly-by (21/Lutetia) is finally scheduled on 10 July 2010. The objective of the paper is to present the mutual impedance probe, MIP, that is part of the Rosetta orbiter package called RPC (Rosetta plasma consortium) and show the plasma and wave observations made in the Earth's plasmasphere, the high electron-density region dominated by the Earth's magnetic field, during the 2005 and 2007 Earth gravity assists/swing-bys. Instruments were mainly switched on for calibration purposes but it was actually a good opportunity to study again the ionized environment of the Earth, in a not so usual location.

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