Table 1.
Instrument range and sensitivity corresponding to the requirements for the mission instruments. NRT: Near Real-Time. Detailed descriptions of the instruments are given in the text.
| Requirements | Range | Sensitivity, rate | Instrument name |
|---|---|---|---|
| Particle composition | 0–50 amu | 0.4 amu, 1 Hz NRT | Ion and Neutral Mass Spectrometer (INMS) |
| On-board temperature | −170 to +160 °C | 1 °C, 1 Hz | Thermistors |
| S/C acceleration | 0–5 g | 10−8 ms−2, 1 Hz | Italian Spring Accelerometer (ISA) |
| Plasma velocity, temperature | ~0.03–1.3 eV | 16 Hz NRT | Ion Velocity Meter (IVM) |
| Plasma density | 109–1012 m−3 | 109 m−3, 1 Hz NRT | multi-Needle Langmuir Probe (m-NLP) |
| Total electron content | 3–300 TECU | 3–5 TECU, 10 Hz | Integrated GPS Occultation Receiver (IGOR) |
| Total electron content | 3–300 TECU | 1 TECU, 10 Hz S4 | Radio tomography receiver (CITRIS) |
| Magnetic field | ±80 μT | 0.5 nT, 10 Hz NRT | Fluxgate Magnetometer (FGM) |
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