Geotail Propagated Solar Wind Magnetic Field Data at 60-Second Resolution

Propagated solar wind data interpolated to 60-second resolution using a minimum variance technique. The data was originally constructed by Dr. J.M. Weygand for Prof. R.L. McPherron under NSF grants ATM 02-1798 and ATM 02-08501. It was primarily used in superposed epoch studies of magnetospheric phenomena.

Use Cases

• Analyzing solar wind propagation delays based on the described minimum variance technique.
• Studying magnetospheric responses to solar wind conditions using the 1-minute interpolated data.
• Modeling magnetic field behavior near the bow shock based on propagated measurements.
• Conducting superposed epoch studies of space weather events as referenced in the description.

Strengths

• Data is processed to a 60-second resolution, suitable for time-series analysis.
• Methodology is documented with references to peer-reviewed publications (Weimer et al., 2003, 2004).
• Data provenance is clear, citing original creators and NSF funding grants.

Limitations

• The propagation method does not work well for shocks and minimum variance directions with tilts greater than 70 degrees of the sun-earth line.
• 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

Solar wind data propagated to a position just outside the nominal bow shock (about 17, 0, 0 Re) and linearly interpolated to 1-minute resolution.

Freshness

Last updated 2026-03-13 03:57:10.797249; freshness should be verified.