There are 6 instruments.
Low Energy Neutral Atom imager
|Detects low energy neutral atoms in the range from 10 - 300 eV. Distinguishes Hydrogen, Helium and Oxygen atoms in the ion flows in the magnetosphere, and provides an image every 5 minutes with 8-degree resolution over a 90 degree field of view.|
Medium Energy Neutral Atom imager
|Detects medium-energy neutral atoms in the range from 1,000 to 30,000 eV. Separates solar wind (Hydrogen) and magnetospheric (Oxygen) sources of ions, and resolves magnetic sub-storm processes involving the flows of ions.|
High Energy Neutral Atom imager
|Detects the high-energy neutral atoms in the range from 10,000 to 200,000 eV to investigate solar wind and magnetospheric processes following sub-storms. the instriment has a resolution of 8 degrees and a field of view of 90 degrees.|
Extreme Ultraviolet imager
|Images the plasmasphere at 304 Angstroms to map the density along the line of sight of singly-ionized helium atoms to resolve plasmaspheric processes. Time resolution, 2-5 minutes; space resolution, 600 km at apogee.|
Far Ultraviolet imager
|Far ultraviolet imaging of the geocorona neutral hydrogen population, and the auroral oval. 50 km resolution from apogee with full updates every 2-5 minutes. Separate the cold geocorona from the hot proton precipitation process, and separate the auroral 1304 and 1356 Angstrom emissions.|
Radio Plasma imager
|Radio sounder to measure electron densities and locate the magnetospheric boundaries. Resolve changes in the boundary locations, and structures within thge magnetopause to scales of 500 km. Determine the electron densities from the magnetosphere to the inner plasmasphere from 0.1 to 100,000 electrons/cc, with 1 minute updates.|
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