Neutral molecular beam measurements with the Rosetta ROSINA-RTOF instrument

Details Neutral molecular beam measurements with the Rosetta ROSINA-RTOF instrument Neutral molecular beam measurements with the Rosetta ROSINA-RTOF instrument

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..975j&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.975

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Scientific paper

On the long journey to the target comet 67P/Churyumov-Gerasimenko Europe's comet chaser Rosetta performed two asteroids flybys. The first flyby took place in September 2008 at asteroid (2867) Steins, and the second one in July 2010 at asteroid (21) Lutetia. These two flybys, as well as the rehearsals for the flybys were an important opportunity for the Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA), to perform measurements as a function of the location of the spacecraft, the spacecraft attitude and the other payload activity. However, the scientific goal of the ROSINA mass spectrometers was trying to detect a thin exosphere of Steins and/or Lutetia. Due to the rather large flyby velocity of 15 km/s, we performed neutral gas beam measurements at our calibration facility in the lab in order to characterize the ram pressure enhancement in the ion source of our instrument.

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