MARSIS: Mars Express Subsurface Total Electron Count Data

Processed Level 5 data from the MARSIS subsurface sounder instrument on the Mars Express orbiter. The dataset contains derived Total Electron Count (TEC) measurements, with calibration and processing details provided in associated documentation. The data is provided by the National Aeronautics and Space Administration (NASA).

Use Cases

• Modeling the Martian ionosphere based on derived Total Electron Count (TEC) data.
• Analyzing subsurface composition and layering on Mars using processed radar sounder data.
• Calibrating and validating other orbital or ground-based measurements of Mars's atmosphere and subsurface.

Strengths

• Data is processed to Level 5, indicating a derived geophysical product.
• Calibration and processing reports are documented and associated with the dataset.
• Data originates from the MARSIS instrument on the long-running Mars Express mission.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Data collected and processed from the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument on the Mars Express orbiter.

Freshness

Last updated 2026-03-13 16:40:36.432393; freshness should be verified.

Geography

Mars