Potential Ionospheric Studies from the International Space Station Using the Floating Potential Measurement Unit

Details Potential Ionospheric Studies from the International Space Station Using the Floating Potential Measurement Unit Potential Ionospheric Studies from the International Space Station Using the Floating Potential Measurement Unit

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa52a0413s&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SA52A-0413

Astronomy and Astrophysics

Astronomy

2407 Auroral Ionosphere (2704), 2471 Plasma Waves And Instabilities : : : : : : : : : : : : : : :, 2435 Ionospheric Disturbances, 7855 Spacecraft Sheaths, Wakes, Charging, 7894 Instruments And Techniques

Scientific paper

The Floating Potential Measurement Unit (FPMU) will be used on the International Space Station (ISS) to validate the vehicle charging theories and charge control systems. Excessive vehicle charging has been identified as a risk to astronauts working outside of the station as well as accelerating the degradation of the space station surface properties. The FPMU will be deployed on the ISS in January of 2003. It consists of two sweeping Langmuir probes, a floating potential probe, and a combination impedance --plasma frequency probe to measure density, floating potential and electron temperature. The ISS orbit of 51 degree inclination and 400 km altitude is will suited to studying a number of ionospheric phenomena including equatorial spread-F and sub auroral arcs. Considerable skepticism has been expressed by the scientific community as to the suitability of the ISS for space science and the FPMU will be a reasonable test of these concerns.

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