Voyager 2 MAG: 48-Second Magnetic Field Data Near Termination Shock

NASA's Voyager 2 mission collected this magnetic field data using a triaxial fluxgate magnetometer. The dataset contains 48-second averaged measurements of magnetic field components (BR, BT, BN) and magnitude (F1) in the heliosphere, near and beyond the solar wind termination shock. The data is provided in ASCII format and includes references to key scientific publications.

Use Cases

• Modeling the structure of solar wind magnetic fields and plasma in the heliosphere based on the triaxial magnetic field measurements.
• Studying long-term heliospheric evolution across solar cycles based on the time-series magnetic field data.
• Investigating the acceleration of cosmic rays at the solar wind termination shock based on magnetic field gradients.
• Analyzing local particle acceleration from solar flare shocks and corotating interaction regions using the magnetic field signal.

Strengths

• Data originates from the authoritative NASA Voyager 2 interplanetary mission.
• The description provides specific uncertainty estimates: +/- 0.02 nT for components and +/- 0.03 nT for magnitude.
• References to peer-reviewed scientific publications are included, providing context and validation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description notes the data processing is complex and partly subjective due to spacecraft field removal and noise correction.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the Voyager 2 spacecraft's dual magnetometer system.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03 13 14:11:20.111329; freshness should be verified.

Geography

Spatial coverage is the heliosphere, from the inner heliosphere to beyond the termination shock.