MMS 3 Magnetic Ephemeris and Coordinates: 30 ms Burst Mode Data

Magnetospheric Multiscale 3 spacecraft position, velocity, attitude, and magnetic ephemeris data at 30 ms burst time resolution. The data product includes magnetic field measurements, footpoint tracing, L-shell, magnetic local time, and coordinate transformation quaternions. It was produced by the National Aeronautics and Space Administration and last updated on 2026-03-13.

Use Cases

• Modeling disturbed magnetospheric conditions based on the Tsyganenko 2004 magnetic field model
• Tracing magnetic field lines to calculate northern and southern hemisphere footpoints
• Analyzing spacecraft position and orientation using rotational quaternions for coordinate transformations
• Studying geomagnetic activity correlations using ancillary variables like Dst and Kp indices

Strengths

• Data is provided at a high-resolution 30 ms burst mode time resolution
• Includes magnetic ephemeris calculated using the Tsyganenko 2004 model for disturbed conditions
• Provides coordinate transformation quaternions for 11 different coordinate systems

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Calculated from spacecraft measurements and magnetic field models.

Freshness

Last updated 2026-03-13 08:50:25.565807; freshness should be verified