PSP ISOIS: Parker Solar Probe Energetic Particle Measurements, 1-Minute Summary

Parker Solar Probe ISOIS instrument suite data provides 1-minute summary measurements of energetic particles near the Sun. The data is calibrated by the ISOIS science team and includes pitch angle calculations derived from magnetic field data provided by the PSP FIELDS team. The dataset is funded by NASA and last updated in March 2026.

Use Cases

• Modeling solar energetic particle acceleration and transport based on 1-minute integrated flux measurements.
• Analyzing pitch angle distributions of particles based on calculations using magnetic field data.
• Studying temporal variations in the near-Sun particle environment based on time-tagged summary data.
• Validating instrument response and calibration models based on the ongoing calibration efforts described.

Strengths

• Data is directly from the NASA Parker Solar Probe mission, a primary source for near-Sun measurements.
• Includes pitch angle calculations enabled by integration with magnetic field data from another instrument team.
• Calibration is ongoing and public data is updated based on improved understanding, suggesting iterative quality improvements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and data volume are 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 suite (PI: D. J. McComas, Princeton University).

Collection Method

Collected by the Energetic Particle Instrument (EPI-Hi and EPI-Lo) aboard the Parker Solar Probe spacecraft.

Time Range

Temporal coverage is not explicitly stated but spans the ongoing Parker Solar Probe mission.

Freshness

Last updated 2026-03-13 07:56:44.156691; freshness should be verified.

Geography

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