PSP ISOIS EPI-Hi: Parker Solar Probe Energetic Particle Rates, 1-Hour Data

Parker Solar Probe (PSP) Integrated Science Investigation of the Sun (ISOIS) Energetic Particle Instrument-Hi (EPI-Hi) Low Energy Telescope 1 (LET1) rates data, processed to Level 2 (L2) and aggregated at 1-hour intervals. The dataset is produced by the ISOIS science team led by Princeton University and funded by NASA under contract NNN06AA01C. Data are calibrated for the near-Sun environment and include pitch angle calculations using magnetic field data from the PSP FIELDS team.

Use Cases

• Modeling solar energetic particle acceleration and transport based on near-Sun particle rate measurements.
• Analyzing correlations between particle fluxes and solar activity based on time-series data.
• Studying pitch angle distributions of energetic particles based on magnetic field data integration.
• Validating space weather prediction models based on calibrated in-situ particle observations.

Strengths

• Data originates from the NASA Parker Solar Probe mission, a primary source for near-Sun measurements.
• Calibration is ongoing and public data are updated based on improved instrument understanding.
• Pitch angle calculations are enabled via integration with magnetic field data from the PSP FIELDS team.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale statistical analysis.
• Data may reflect calibration bias inherent to the evolving near-Sun instrument response.

Provenance

Source

NASA Parker Solar Probe mission, ISOIS science team (PI: D. J. McComas, Princeton University).

Collection Method

Collected in-situ by the EPI-Hi Low Energy Telescope 1 (LET1) instrument on the Parker Solar Probe spacecraft.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03 13 07:59:46.666697; freshness should be verified.

Geography

Spatial coverage is the trajectory of the Parker Solar Probe, primarily the near-Sun environment.