The Jupiter Helium Interferometer experiment on the Galileo entry probe

Details The Jupiter Helium Interferometer experiment on the Galileo entry probe The Jupiter Helium Interferometer experiment on the Galileo entry probe

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ssrv...60..263v&link_type=abstract

Space Science Reviews (ISSN 0038-6308), vol. 60, no. 1-4, May 1992, p. 263-281.

Computer Science

5

Atmospheric Composition, Atmospheric Entry, Galileo Probe, Helium Atoms, Interferometers, Jupiter Atmosphere, Abundance, Galileo Spacecraft, Nasa Space Programs

Scientific paper

The scientific objective, instrument design, and calibration of a miniaturized Jamin-Mascart interferometer which is to perform an accurate measurement of the refractive index of the Jovian atmosphere in the pressure range 2.5 to 10 bar are presented. The instrument is to perform this measurement in December 1995 aboard the entry probe of the NASA Galileo spacecraft. From the data obtained the mole fraction of helium in the atmosphere of Jupiter is to be calculated with an estimated uncertainty of +/- 0.0015. The instrument has a total mass of 1.4 kg and consumes 0.9 W of electrical power.

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