Voyager 1 MAG: 48-Second Magnetic Field Data Near Termination Shock

Magnetic field measurements from the Voyager 1 spacecraft's Fluxgate Magnetometer (MAG) instrument, averaged over 48-second intervals. The data was collected by NASA during the Voyager Interplanetary Mission to study the solar wind and heliosphere, particularly near and beyond the termination shock. It includes components BR, BT, BN, and magnitude F1, with estimated uncertainties of +/- 0.02 nT for components and +/- 0.03 nT for magnitude.

Use Cases

• Analyzing the structure of solar wind magnetic fields and plasma in the heliosphere based on the BR, BT, and BN components.
• Studying long-term heliospheric evolution and solar modulation based on the time-series magnetic field data.
• Investigating particle acceleration at the solar wind termination shock based on magnetic field gradients and fluctuations.
• Modeling the removal of spacecraft-generated magnetic field signals (0.1-0.2 nT) to derive ambient solar wind fields.

Strengths

• Data originates from the authoritative NASA Voyager 1 mission.
• Uncertainty estimates are provided: +/- 0.02 nT for component averages and +/- 0.03 nT for magnitude.
• Describes the complex process of signal extraction from spacecraft and telemetry noise.

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 signal extraction process is 'complex and partly subjective'.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measured by the Voyager 1 spacecraft's Triaxial Fluxgate Magnetometer (MAG) instrument.

Time Range

Covers periods near and beyond the solar wind termination shock.

Freshness

Last updated 2026-03-13 05:16:23.249558; freshness should be verified.

Geography

Interplanetary space, heliosphere.