MARSIS: Mars Ionosphere Spectral Density Measurements

Mars Express MARSIS Active Ionospheric Sounder data includes calibrated spectral density measurements for the entire Mars Express nominal mission. The dataset consists of a transmit frequency followed by a time series of spectral density measurements of received power. Browse products contain spectrogram overview plots and individual ionograms for each sounding activity.

Use Cases

• Analyze ionospheric structure based on calibrated spectral density measurements
• Study signal propagation and attenuation based on received power time series
• Generate visualizations of Martian atmospheric phenomena based on spectrogram overview plots
• Validate atmospheric models based on individual ionograms for each sounding activity

Strengths

• Data is calibrated in units of spectral density, suggesting a standardized measurement process
• Includes spectral information for the entire Mars Express nominal mission, implying a complete temporal record

Limitations

• 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

Data collected by the Mars Express MARSIS Active Ionospheric Sounder instrument.

Time Range

The entire Mars Express nominal mission.

Freshness

Last updated 2026-03-13 04:26:15.935275; freshness should be verified

Geography

Mars