PSP IS☉IS EPI-Hi LET2: Energetic Particle Rates from Parker Solar Probe

Parker Solar Probe (PSP) Integrated Science Investigation of the Sun (IS☉IS) Energetic Particle Instrument-Hi (EPI-Hi) Low Energy Telescope 2 (LET2) rates data. The dataset provides Level 2, 10-second resolution measurements of energetic particles near the Sun, with calibration updates ongoing throughout the mission. The data are produced by the IS☉IS team at Princeton University under NASA contract NNN06AA01C.

Use Cases

• Analyze temporal evolution of energetic particle fluxes near the Sun based on 10-second rate data.
• Correlate particle events with solar activity using pitch angle calculations based on magnetic field data.
• Study the near-Sun energetic particle environment for instrument calibration and model validation.
• Investigate space weather events by examining high-cadence particle measurements from the Parker Solar Probe.

Strengths

• Data is from the Parker Solar Probe, a dedicated NASA mission for solar study.
• Calibration is described as ongoing, with public updates planned 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.
• The description notes visualization tools are under development and cannot be guaranteed error-free.

Provenance

Source

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

Collection Method

Measured by the EPI-Hi Low Energy Telescope 2 (LET2) instrument on the Parker Solar Probe spacecraft.

Time Range

Covers the ongoing Parker Solar Probe mission timeline.

Freshness

Last updated 2026-03-13 05:43:37.024650; freshness should be verified.

Geography

Data collected in the near-Sun environment along the spacecraft's trajectory.