COSPIN-HET: Ulysses Satellite Proton and Electron Counts

Spin-averaged proton and electron counts from the Ulysses spacecraft's High Energy Telescope (HET). The data includes counts for nine energy channels, with proton energies ranging from approximately 5.4 MeV to over 92 MeV and electron energies from approximately 1 MeV to 10 MeV. Data is provided by NASA as daily files with 12-second resolution, containing start times, accumulation durations, and integer counts.

Use Cases

• Modeling solar particle event propagation based on proton counts in multiple energy channels.
• Analyzing temporal variations in cosmic ray flux based on high-resolution (12-second) time-series data.
• Correlating electron and proton energy spectra with spacecraft spin-averaged measurements.
• Studying telemetry cycle effects on data accumulation intervals based on the described repeating cycle pattern.

Strengths

• Data includes counts for nine distinct energy channels for protons and electrons.
• Time resolution is high, with an average interval between readouts of 16 seconds.
• Data is provided as raw, unprocessed counts without noise removal or despiking.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Electron energy ranges are described as 'very approximate'.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measurements from the Ulysses spacecraft's COSPIN High Energy Telescope (HET).

Freshness

Last updated 2026-03-13 05:41:41.526807; freshness should be verified.