PSP ISOIS EPI-Hi: Parker Solar Probe Energetic Particle Rates, 10-Second Data

Parker Solar Probe (PSP) energetic particle measurements from the Integrated Science Investigation of the Sun (ISOIS) instrument suite. The data consist of 10-second rates from the EPI-Hi Low Energy Telescope 1 (LET1), with calibration updates ongoing throughout the mission. The dataset is produced by the NASA PSP mission team, led by Princeton University, and was last updated in March 2026.

Use Cases

• Modeling solar energetic particle flux and spectra based on 10-second rate data
• Analyzing particle pitch angle distributions based on magnetic field data integration mentioned in the description
• Studying temporal evolution of particle events near the Sun based on high-cadence time-series measurements
• Calibrating or validating instrument response models for the ISOIS EPI-Hi suite

Strengths

• Data is from a current NASA flagship mission (Parker Solar Probe) with ongoing calibration
• Includes pitch angle calculations enabled by integration with magnetic field data from the FIELDS team
• Last updated on 2026-03-13, indicating active maintenance

Limitations

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

Provenance

Source

NASA Parker Solar Probe mission, ISOIS instrument team (Princeton University)

Collection Method

Measured by the EPI-Hi Low Energy Telescope 1 (LET1) instrument aboard the Parker Solar Probe spacecraft

Time Range

Covers the ongoing Parker Solar Probe mission timeline

Freshness

Last updated 2026-03-13 08:00:09.216916

Geography

Heliospheric measurements from the Parker Solar Probe's trajectory near the Sun