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Instrument: HYDRA : Hot Plasma Analyzer
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HYDRA is a plasma experimental investigation on the POLAR spacecraft. HYDRA is
a collection of electrostatic analyzers designed for high resolution
observations of electron and ion velocity distributions in the earth's polar
magnetosphere and was designed and constructed by a consortium of institutions
for the purpose of improving our understanding of the complex interactions of
the polar magnetosphere with the solar wind and the ionosphere.
HYDRA subsystems are:
- Duo-Deca-Electron-Ion-Spectrometer (DDEIS)
- Parallel Plate Analyzer (PPA)
- Data Processing Unit (DPU) and UV Intracalibration System

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Online Resources

Instrument Logistics
Instrument Start Date: 1996-02-24
Instrument Owner: University of Iowa