Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufm.p41b..06s&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #P41B-06
Physics
5421 Interactions With Particles And Fields, 6295 Venus
Scientific paper
At 23:08 UT on 5 June 2007 the MESSENGER spacecraft reached its closest approach altitude (338 km) during its second flyby of Venus en route to its 2011 orbit insertion at Mercury. Whereas no measurements were collected during MESSENGER's first Venus flyby in October 2006, the Magnetometer (MAG) and the Energetic Particle and Plasma Spectrometer (EPPS) operated successfully throughout this second encounter. Venus provides the solar system's best example of a solar wind - ionosphere planetary interaction. Pioneer Venus Orbiter measurements have shown that this interaction affects the upper atmosphere and ionosphere down to altitudes of ~ 150 km. Here we present an initial overview of the MESSENGER observations during the ~ 4 hrs that the spacecraft spent within 10 planetary radii of Venus and, together with Venus Express measurements, examine the influence of solar wind plasma and interplanetary magnetic field conditions on the solar wind interaction at solar minimum.
Acuña Mario Humberto
Anderson Benjamin J.
Barabash Stas
Benna Marcus
Boardsen Scott A.
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