MMS 1: Magnetospheric Multiscale Spacecraft Position and Magnetic Field Data

Magnetospheric Multiscale 1 (MMS 1) spacecraft position, velocity, attitude, and magnetic ephemeris data at 30 ms burst resolution. The data product includes magnetic field measurements, footpoint tracing, and coordinate transformations using the Tsyganenko 2004 model for disturbed conditions. This Level-2 science data is provided by the National Aeronautics and Space Administration.

Use Cases

• Modeling magnetospheric field lines and footpoint locations based on the Tsyganenko 2004 model mentioned in the description.
• Analyzing spacecraft trajectory and orientation using the provided position, velocity, and rotational quaternions.
• Correlating magnetic activity with geomagnetic indices based on the included Dst and Kp indices.
• Transforming magnetic field vectors between coordinate systems using the provided rotational quaternions.
• Studying particle loss cone dynamics based on the calculated northern and southern hemisphere loss cone angles.

Strengths

• Data is calculated using the Tsyganenko 2004 magnetic field model for disturbed magnetospheric conditions.
• Includes coordinate transformations from GEI into 11 other coordinate systems via rotational quaternions.
• Contains ancillary variables such as dipole tilt angle, Dst and Kp activity indices, and eclipse flags.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Calculated from spacecraft measurements using the Tsyganenko 2004 magnetic field model.

Time Range

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Freshness

Last updated 2026-03 13 06:31:37.623590; freshness should be verified.

Geography

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