MMS SCM AC Magnetic Field Waveforms at 32 Hz

Survey mode AC magnetic field waveforms collected by the Magnetospheric Multiscale (MMS) mission's Search Coil Magnetometer (SCM). The tri-axial instrument measures three-dimensional magnetic field fluctuations in nanoTesla, calibrated at the National Magnetic Observatory and checked onboard per orbit. Data is provided in the GSE coordinate frame.

Use Cases

• Analyze magnetic wave properties based on tri-axial AC magnetic field waveforms
• Study magnetospheric dynamics based on continuous survey mode data
• Validate instrument calibration based on onboard calibration signal checks
• Correlate magnetic field fluctuations with other MMS mission datasets

Strengths

• Data is calibrated at the National Magnetic Observatory, Chambon-la-Foret
• Onboard calibration signal checks are performed once per orbit
• Instrument paper and data product guide are publicly available

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the tri-axial Search-Coil Magnetometer on the MMS mission, digitized and processed by the Digital Signal Processor, collected by the Central Instrument Data Processor.

Freshness

Last updated 2026-03-13 08:56:37.704538