The Cluster Ion Spectrometer (CIS) is a comprehensive ionic plasma spectrometry package onboard the four Cluster spacecraft, capable of obtaining full three-dimensional ion distributions with one spin (4 second) time resolution and with mass-per-charge composition determination. The CIS package consists of two different instruments, the time-of-flight ion Composition Distribution Function analyzer (CODIF, CIS-1), and the Hot Ion Analyzer (HIA, CIS-2), plus a sophisticated dual-processor based instrument control and data processing system (DPS), which permits extensive onboard data-processing.

The CIS experiment is a collaborative effort of many international institutions, under the principal responsibility of CESR (Toulouse, France). The contribution of the Max-Planck-Institut für extraterrestrische Physik (MPE) for CODIF onboard Cluster was supported by Deutsches Zentrum für Luft- und Raumfahrt (DLR) under grant 50 OC 8906, and by ESA under contract 1501073-2400.

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© Max-Planck-Institut für extraterrestrische Physik

last update 12/7/2004
by Rosmarie Mayr-Ihbe,

Contact Person: Berndt Klecker,