MARSIS: Mars Subsurface and Ionosphere Sounding Data from Mars Express

Mars Express mission data from the MARSIS instrument, containing scientific telemetry for subsurface and ionosphere sounding. The dataset has been processed to remove duplicated and corrupted packets and includes ground-computed geometric information for spatial and temporal location. It is provided by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Analyzing Martian subsurface geological structures based on processed sounding data.
• Studying the Martian ionosphere's properties using the included ionosphere sounding data.
• Mapping observation locations in space and time using the provided ground-computed geometric information.

Strengths

• Data has been edited for duplicated and corrupted packets, indicating a level of quality control.
• Includes both subsurface and ionosphere sounding data, covering two distinct scientific domains.
• Provides ground-computed geometric information for spatial and temporal context.

Limitations

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

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Scientific telemetry from the MARSIS instrument on the Mars Express spacecraft, processed on ground.

Freshness

Last updated 2026-03-13 09:04:28.699513; freshness should be verified.

Geography

Mars