Other
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985avwst.123...16c&link_type=abstract
Aviation Week and Space Technology (ISSN 0005-2175), vol. 123, Sept. 16, 1985, p. 16-18.
Other
Comets, Ice Mission, International Cometary Explorer, Giacobini-Zinner, Misson Description, Interactions, Comae, Solar Wind, Dynamics, Plasma, Comet Tails, Composition, Symmetry, Bowshock, Temperature, Intensity, Magnetic Fields, Turbulence
Scientific paper
A first direct exploration ever of a comet (Giacobini-Zinner) was made on Sept. 11 by the U.S. International Cometary Explorer (ICE) Satellite. One of the key objectives of the encounter was to determine whether the comet had a bow shock. Observations with the plasma electrons instruments showed evidence that there might be one, and about 80 min from penetration, the instruments provided strong evidence of crossing some sort of shock wave. The spacecraft crossed the comet's coma at 4886 miles behind the nucleus, at 45,000 mph. No cometary dust was observed by the satellite. Magnetic field lines were observed behaving exactly as the theoretical predictions. In addition, observations with the plasma wave instruments detected a very strong shock identified as a bow shock. Plasma turbulence was also observed. Other data such as the size of the coma/tail area, the change in the satellite system status, and the environment created by the comet in the solar wind have been collected.
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