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Table 1.
MAG performance requirements, including measurement requirements and constraints.
| Requirement | Measurement | Constraint |
|---|---|---|
| Resolve fluid-scale structures | – Cadence up to proton gyroperiod | – Cadence of better than 0.1 s |
| throughout the mission | – Precision of better than 10% of | – Absolute precision of < 10 pT |
| ambient field | ||
| – Sensitivity lower than natural variability | – Instrument noise density lower | |
than 10 pT/ at 1 Hz |
||
| – Continuous measurement | – Instrument operational throughout | |
| science phase, not saturated by ambient | ||
| field | ||
| Resolve ion kinetic-scale phenomena | – Cadence > 10 times proton gyroperiod | – Cadence of better than 0.01 s |
| throughout the mission | in burst mode | in burst mode |
| – Instrument in burst mode for around | ||
| 10% of operations | ||
| Measure ambient field vector | – Absolute value within 10% of ambient | – Instrument offset stability < 0.5 nT |
| for other instruments | per 100 h | |
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