MMS 2 FGM: Magnetospheric Magnetic Field Measurements at 128 Samples/s

NASA's Magnetospheric Multiscale (MMS) mission provides magnetic field data from the Flux Gate Magnetometer (FGM) instrument. The Level 2 burst mode data offers high-resolution measurements at 128 samples per second within the mission's Region of Interest. The dataset includes cross-calibrated data from analog and digital fluxgate magnetometers, with calibration performed at the Technical University, Braunschweig and UCLA.

Use Cases

• Analyzing high-frequency magnetic field fluctuations in Earth's magnetosphere based on 128 sample/s burst mode data.
• Studying magnetic reconnection events using precise, intercalibrated magnetic field vector measurements.
• Validating magnetospheric models with in-situ spacecraft data featuring documented error estimates (e.g., 0.1 nT in spin-plane).
• Investigating instrument calibration stability using data from dual, cross-correlated magnetometers.

Strengths

• Data is from a dedicated NASA mission (MMS) with a documented calibration program at specific institutions.
• Provides high-resolution burst mode data at 128 samples per second within the Region of Interest.
• Includes specific error estimates for the ROI: 0.1 nT in spin-plane, 0.15 nT along spin-axis, and 0.2 nT total magnitude.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is in BIN format, which may require specialized tools for access and analysis.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured in-situ by the Flux Gate Magnetometer (FGM) instrument on the MMS 2 spacecraft.

Time Range

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Freshness

Last updated 2026-03 13 06:18:29.170364; freshness should be verified.

Geography

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