CASSINI MIMI LEMMS: Uncalibrated Magnetospheric Particle Data from Saturn Tour

Cassini's MIMI LEMMS sensor collected uncalibrated particle measurements across the entire mission, including flybys of Earth and Jupiter and the Saturn orbital tour. The data was processed by the Applied Physics Laboratory and Fundamental Technologies, LLC, and is presented in variable-length comma-separated tables. This dataset is described as the most comprehensive and complete within the Cassini MIMI LEMMS archive, intended to be the first point of entry for users.

Use Cases

• Study the evolution of Saturn's magnetosphere based on uncalibrated energy channel data from the entire orbital tour.
• Compare interplanetary particle conditions during cruise phases with in-situ measurements at Jupiter and Earth.
• Identify periods of scientific interest using the provided calibrated Key Parameter browse data and associated images.

Strengths

• Data covers the complete Cassini mission timeline, including interplanetary cruise and flybys.
• Includes a companion calibration volume (COMIMI_0000) with specific algorithms for deriving calibrated data.
• Described as the most comprehensive and complete data set in the Cassini MIMI LEMMS archive.

Limitations

• Data is uncalibrated; scientific use requires applying calibration algorithms from a separate volume.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected by the Cassini spacecraft's MIMI LEMMS sensor, decommutated and decoded by APL, then ordered and filtered by Fundamental Technologies, LLC.

Time Range

Covers the entire Cassini mission, including Earth flyby, Jupiter flyby, interplanetary cruise, and Saturn tour.

Freshness

Last updated 2026-03-05 19:42:45.472640; freshness should be verified.

Geography

Interplanetary space and the planetary systems of Earth, Jupiter, and Saturn.