MMS 2: Magnetic Field and Spacecraft Position Data at 30 ms Resolution

Burst mode data from the Magnetospheric Multiscale 2 (MMS 2) spacecraft, providing position, velocity, attitude, and magnetic field information at a 30-millisecond resolution. The dataset includes magnetic ephemeris calculated using the Tsyganenko 1989 model for quiet conditions, magnetic field line footpoints, loss cone angles, and activity indices. It is produced by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Modeling magnetospheric magnetic field lines based on the Tsyganenko 1989 model and spacecraft position.
• Analyzing spacecraft trajectory and orientation in multiple coordinate systems based on provided quaternions.
• Correlating spacecraft measurements with geomagnetic activity using included Dst and Kp indices.
• Studying magnetic field line topology and loss cone angles for particle precipitation studies.

Strengths

• Data is provided at a high 30-millisecond time resolution for burst mode analysis.
• Includes multiple derived geophysical variables such as L-shell, magnetic local time, and footpoint magnetic field strength.
• Supports coordinate transformations between 12 different systems, including GEI, GSE, and SM.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is modeled for quiet magnetospheric conditions, which may not represent active periods.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured and calculated from the Magnetospheric Multiscale 2 (MMS 2) spacecraft.

Time Range

null

Freshness

Last updated 2026-03-13 06:24:11.245161; freshness should be verified.

Geography

null