Table 3.
Properties of the three sensors (Electron Analyzer System (EAS), Proton Alpha Sensor (PAS), and Heavy Ion Sensor (HIS)) that constitute the Solar Wind Analyzer (SWA).
| EAS | PAS | HIS | |
|---|---|---|---|
| Field of view | 4π | −24° to 42° (Az) | −30° to 66° (Az) |
| −22.5° to 22.5° (El) | −17° to 22.5° (El) | ||
| Particle species | Electrons | H+, He++ | 3He – Fe |
| Energy range | 1 eV–5 keV | 0.2 keV/q–20 keV/q | 0.5 keV/q–100 keV/q (Az) |
| 0.5 keV/q–16 keV/q (El) | |||
| energy resolution | 12% | 8% | 6% |
| measurement parameters | Flux, velocity, energy distribution 3D | 3D velocity distribution | Energy, charge, mass, direction 3D |
| Angular resolution | 10° | 2° | 6° |
| Cadence | 4 s | 4 s | 30 s |
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