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

Voyager 2 magnetic field measurements have an estimated uncertainty of +/- 0.02 nT for vector components and +/- 0.03 nT for magnitude. This dataset contains 48-second averaged magnetic field data collected by the Voyager 2 spacecraft near and beyond the solar wind termination shock, processed by NASA. The data is intended for studying the structure and evolution of the heliospheric magnetic field.

Use Cases

• Modeling heliospheric magnetic field structure based on BR, BT, and BN component data.
• Studying solar wind termination shock effects based on magnetic field strength (F1) measurements.
• Analyzing long-term solar cycle modulation based on time-series magnetic field observations.
• Investigating cosmic ray acceleration and propagation based on magnetic field gradients.

Strengths

• Data originates from the NASA Voyager 2 mission, a primary source for outer heliosphere measurements.
• Description provides specific uncertainty estimates: +/- 0.02 nT for components and +/- 0.03 nT for magnitude.
• Platform tags and description indicate coverage of key heliospheric regions like the termination shock and heliosheath.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• The description notes data extraction is a 'complex and partly subjective process' due to spacecraft field removal.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measured by the Voyager 2 spacecraft's triaxial fluxgate magnetometer (MAG) and processed into 48-second averages.

Time Range

Covers periods when Voyager 2 was near and beyond the solar wind termination shock.

Freshness

Last updated 2026-03-13 14:10:12.406769; freshness should be verified.

Geography

Interplanetary space within the heliosphere, along the Voyager 2 trajectory.