MMS 1 FGM: DC Magnetic Field Measurements at 128 Samples per Second

MMS 1 Flux Gate Magnetometer Level 2 data provides high-resolution DC magnetic field measurements from the Magnetospheric Multiscale mission. The dataset includes burst mode data at 128 samples per second within the mission's Region of Interest, with absolute error estimated to be no more than 0.2 nT in total magnitude. Data is provided by NASA, with instrument calibration performed at the Technical University, Braunschweig and UCLA.

Use Cases

• Analyzing high-frequency magnetic field fluctuations in the magnetosphere based on the 128 sample/s burst mode data.
• Cross-calibrating magnetic field measurements based on the dual AFG and DFG instrument design described.
• Studying magnetic field structure within the mission's Region of Interest based on the specified data acquisition modes.
• Validating magnetospheric models using the high-precision measurements with defined error estimates.

Strengths

• Provides high-resolution burst mode data at 128 samples per second.
• Instruments were cross-calibrated, with absolute error estimated at no more than 0.2 nT in total magnitude.
• Dual magnetometer design (AFG and DFG) operated as a single instrument for a unified data product.

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 processing.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the Fluxgate Magnetometers (FGM) on the Magnetospheric Multiscale spacecraft.

Time Range

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Freshness

Last updated 2026-03-13 06:27:27.362494; freshness should be verified.

Geography

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