JUNO JEDI: Uncalibrated Energetic Particle Detector Observations from Jupiter Orbit

Uncalibrated observations from the JUNO spacecraft's Jupiter Energetic-Particle Detector (JEDI) instrument. The data is organized into daily files by spacecraft event time (SCET) and includes measurements from three instrument subsystems, each with six look directions. NASA produced this dataset, which was last updated in March 2026.

Use Cases

• Analyzing energetic particle flux and composition based on time-of-flight and deposited energy measurements.
• Studying the spatial anisotropy of particle distributions based on data from three instrument pucks aligned in different directions.
• Comparing instrument performance across different operational modes (e.g., HIERSESP, LOERSTOFXER) mentioned in the description.
• Investigating temporal variations in Jupiter's radiation belts using daily spacecraft event time files.

Strengths

• Data originates from a dedicated NASA planetary science mission, the JUNO spacecraft.
• Instrument provides multiple measurement types, including time-of-flight and deposited energy detection.
• Data is organized into daily files by spacecraft event time, which may facilitate temporal analysis.

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 analysis.
• Description metadata is limited; actual data quality and completeness require manual inspection.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the Jupiter Energetic-Particle Detector (JEDI) instrument onboard the spinning JUNO spacecraft.

Time Range

Temporal coverage is not explicitly stated in the provided input.

Freshness

Last updated 2026-03-13 20:19:06.140272; freshness should be verified.

Geography

Observations are from the JUNO spacecraft's orbit around Jupiter.