PSP IS☉IS EPI-Hi: Solar Energetic Particle Rates from Parker Solar Probe

Parker Solar Probe's IS☉IS EPI-Hi instrument provides one-minute resolution measurements of energetic particles near the Sun. The data includes pitch angle calculations derived from magnetic field measurements by the PSP FIELDS team. This Level 2 dataset is maintained by the University of New Hampshire and funded by NASA under contract NNN06AA01C.

Use Cases

• Modeling solar energetic particle acceleration and transport based on near-Sun particle rates.
• Analyzing correlations between particle fluxes and solar activity based on time-series data.
• Studying particle pitch angle distributions based on magnetic field-derived calculations.
• Calibrating instrument response models for the near-Sun environment based on ongoing calibration efforts.

Strengths

• Data is calibrated by the IS☉IS science team, with updates planned over the mission.
• Includes pitch angle calculations enabled by magnetic field data from the PSP FIELDS team.
• Publicly available with a defined acknowledgment and citation protocol.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in BIN, PDF, and HTML formats, which may require specialized tools for analysis.

Provenance

Source

NASA Parker Solar Probe mission, IS☉IS Science Team (PI: D. J. McComas, Princeton University).

Collection Method

Collected by the Energetic Particle Instrument-Hi (EPI-Hi) Low Energy Telescope 2 (LET2) on the Parker Solar Probe spacecraft.

Time Range

Mission timeframe of the Parker Solar Probe.

Freshness

Last updated 2026-03-13 07:58:06.969856; freshness should be verified.

Geography

Space, specifically the near-Sun environment traversed by the Parker Solar Probe.