Hawkeye LEPEDEA: Ion Moment Data from the Entire Mission

Ion moments, treated as 100% protons, are derived from LEPEDEA ramp measurements on the Hawkeye spacecraft. One energy sweep takes 1.44 seconds, with a time step between moment computations varying between 70 and 110 seconds. The dataset was created by the National Aeronautics and Space Administration and was last updated on 2026-03-13.

Use Cases

• Analyzing ion population dynamics based on the 11.52-second time between sweeps.
• Studying spatial coverage in the spin plane based on the approximately 21 sweeps required for uniform coverage.
• Modeling plasma behavior based on ion moments derived from LEPEDEA ramp measurements.

Strengths

• Covers the entire Hawkeye spacecraft mission.
• Time resolution for moment computations is specified as varying between 70 and 110 seconds.
• Data originates from the National Aeronautics and Space Administration.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is stored in a BIN format, which may require specialized tools for access.
• The description notes no correction for the external photo-electron sheath was made.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from LEPEDEA (Low Energy Proton-Electron Differential Energy Analyzer) ramp measurements on the Hawkeye spacecraft.

Time Range

The entire Hawkeye mission.

Freshness

Last updated 2026-03-13 07:12:31.444717; freshness should be verified.

Geography

Space, likely Earth's magnetosphere based on the instrument and mission context.