scispace - formally typeset
Book ChapterDOI

The Cluster Ion Spectrometry (CIS) Experiment

TLDR
The Cluster Ion Spectrometry (CIS) experiment is a comprehensive ionic plasma spec-trometry package on-board the four Cluster spacecraft capable of obtaining full three-dimensional ion distributions with good time resolution (one spacecraft spin) with mass per charge composition determination as mentioned in this paper.
Abstract
The Cluster Ion Spectrometry (CIS) experiment is a comprehensive ionic plasma spec-trometry package on-board the four Cluster spacecraft capable of obtaining full three-dimensional ion distributions with good time resolution (one spacecraft spin) with mass per charge composition determination. The requirements to cover the scientific objectives cannot be met with a single instrument. The CIS package therefore consists of two different instruments, a Hot Ion Analyser (HIA) and a time-of-flight ion Composition and Distribution Function analyser (CODIF), plus a sophisticated dual-processor-based instrument-control and Data-Processing System (DPS), which permits extensive on-board data-processing. Both analysers use symmetric optics resulting in continuous, uniform, and well-characterised phase space coverage. CODIF measures the distributions of the major ions (H+, He+, He++, and O+) with energies from -0 to 40 keV/e with medium (22.5°) angular resolution and two different sensitivities. HIA does not offer mass resolution but, also having two different sensitivities, increases the dynamic range, and has an angular resolution capability (5.6° × 5.6°) adequate for ion-beam and solar-wind measurements.

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

First multispacecraft ion measurements in and near the Earth's magnetosphere with the identical Cluster ion spectrometry (CIS) experiment

TL;DR: The Cluster Ion Spectrometry (CIS) experiment as discussed by the authors measured the full, three-dimensional ion distribution of the major magnetospheric ions (H+, He+, He++, and O+) from the thermal energies to about 40 keV/e.
Journal ArticleDOI

Fast Plasma Investigation for Magnetospheric Multiscale

Craig J. Pollock, +106 more
TL;DR: The Fast Plasma Investigation (FPI) was developed for flight on the Magnetospheric Multiscale (MMS) mission to measure the differential directional flux of magnetospheric electrons and ions with unprecedented time resolution to resolve kinetic-scale plasma dynamics as mentioned in this paper.
Journal ArticleDOI

The Space Physics Environment Data Analysis System (SPEDAS)

Vassilis Angelopoulos, +104 more
TL;DR: The SPEDAS development history, goals, and current implementation are reviewed, and its “modes of use” are explained with examples geared for users and its technical implementation and requirements with software developers in mind are outlined.
Journal ArticleDOI

The Solar Wind Ion Analyzer for MAVEN

TL;DR: The Solar Wind Ion Analyzer (SWIA) as discussed by the authors was used on the MAVEN mission to measure the solar wind ion flows around Mars, both in the upstream solar wind and in the magneto-sheath and tail regions inside the bow shock.
Journal ArticleDOI

Cluster - Science and Mission Overview

TL;DR: The European Space Agency's Cluster program as discussed by the authors is designed to study the small-scale spatial and temporal characteristics of the magnetospheric and near-Earth solar wind plasma, which is composed of four identical spacecraft which will be able to make physical measurements in 3D. The relative distance between the four spacecraft will be varied between 200 and 18000 km during the course of the mission.
References
More filters
Journal ArticleDOI

The magnetopause for large magnetic shear: AMPTE/IRM observations

TL;DR: In this paper, the authors used the improved accuracy and time resolution of the IRM plasma measurements to reexamine the occurrence of high-speed flows as signatures of the reconnection process at the magnetopause.
Journal ArticleDOI

Direct observation of He + pick-up ions of interstellar origin in the solar wind

TL;DR: In this paper, a velocity distribution extending up to double the solar wind velocity has been detected in interplanetary space, which unambiguously determines the source: interstellar neutrals, ionized and accelerated in solar wind.
Journal ArticleDOI

Cluster - Science and Mission Overview

TL;DR: The European Space Agency's Cluster program as discussed by the authors is designed to study the small-scale spatial and temporal characteristics of the magnetospheric and near-Earth solar wind plasma, which is composed of four identical spacecraft which will be able to make physical measurements in 3D. The relative distance between the four spacecraft will be varied between 200 and 18000 km during the course of the mission.
Journal ArticleDOI

Detection of interstellar pick-up hydrogen in the solar system.

TL;DR: From the measured fluxes of pick-up protons and singly charged helium, the number densities of neutral hydrogen and helium in the distant regions of the solar system are estimated to be 0.077 � 0.015 and 0.013 per cubic centimeter, respectively.
Related Papers (5)

First multispacecraft ion measurements in and near the Earth's magnetosphere with the identical Cluster ion spectrometry (CIS) experiment