Performance assessment of the DEMETER and PROBA-2 Segmented Langmuir Probes

Details Performance assessment of the DEMETER and PROBA-2 Segmented Langmuir Probes Performance assessment of the DEMETER and PROBA-2 Segmented Langmuir Probes

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1423l&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1423

Computer Science

Scientific paper

The Segmented Langmuir Probe (SLP) is a variant of the classical Langmuir Probe. The spherical sensor of the SLP is divided in several sectors that make a multi-electrode spherical configuration that provides additional capability compared to a single electrode Langmuir Probe. A 6-sector SLP, together with a classical cylindrical sensor, which constituted the Instrument Sonde de Langmuir (ISL), was flown on the CNES Demeter satellite launched in June 2004 on a 700-km altitude high-inclination orbit. ISL worked flawlessly till the satellite was decommissioned in March 2011. It provided more than 6 years of data, although the SLP was only operated occasionally. Two 7-sector SLP's, which constitutes the Double Segmented Langmuir Probe (DSLP) currently flying on board the ESA Proba-2 mission, which was launched in November 2009 also on a 700-km altitude high-inclination orbit. DSLP is operating nominally. The unique capability of the SLP in the different plasma environments encountered by both missions will be highlighted and its relevance as a potential instrument for future planetary mission orbiters will be discussed.

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