PSP IS☉IS EPI-Hi: Parker Solar Probe High-Energy Particle Rates

NASA's Parker Solar Probe mission provides one-minute rates of high-energy particles from the Sun's environment, measured by the Integrated Science Investigation of the Sun (IS☉IS) instrument suite. The data reflects ongoing calibration efforts by the IS☉IS science team at Princeton University and includes pitch angle calculations using magnetic field data from the FIELDS instrument. This Level 2 dataset is publicly available and was last updated in March 2026.

Use Cases

• Analyzing temporal variations in solar energetic particle fluxes based on one-minute rate data.
• Studying particle pitch angle distributions based on calculations using magnetic field data.
• Modeling the near-Sun energetic particle environment for space weather forecasting.
• Calibrating and validating instrument response models for high-energy particle telescopes.

Strengths

• Data is from a dedicated NASA solar mission, the Parker Solar Probe, providing direct measurements from the near-Sun environment.
• Includes pitch angle calculations enabled by integration with magnetic field data from another instrument suite (FIELDS).
• Calibration is described as ongoing, with public data updates planned over the mission's course.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data size are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (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) High Energy Telescope (HET) onboard the Parker Solar Probe spacecraft.

Time Range

Temporal coverage corresponds to the Parker Solar Probe mission timeline, but specific dates are not provided.

Freshness

Last updated 2026-03-13 08:00:47.527965; freshness should be verified.

Geography

Spatial coverage is the heliosphere, specifically the trajectory and environment of the Parker Solar Probe spacecraft.