Mars Heliocentric Trajectory Data in Multiple Coordinate Systems

Heliocentric trajectory data for the planet Mars, provided in Heliographic (HG), Heliographic Inertial (HGI), and Solar Ecliptic (SE) coordinate systems. The data is produced by NASA using the 'Mean of Date' method for the Equinox Epoch and is derived from JPL Horizons ephemeris calculations. The dataset was last updated on March 13, 2026.

Use Cases

• Modeling spacecraft ephemeris near Mars based on the description of using planetary orbits as a proxy.
• Analyzing solar system dynamics based on heliocentric longitude and coordinate data.
• Comparing coordinate transformations based on the use of HG, HGI, and SE systems.
• Studying the drift of the First Point of Aries (FPA) based on the described Equinox Epoch methods.

Strengths

• Data originates from the authoritative JPL Horizons system, as stated in the description.
• Coordinates are calculated using the specific 'Mean of Date' method for the Equinox Epoch.
• Includes trajectory data in three distinct coordinate systems: HG, HGI, and SE.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is 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 (NASA), derived from JPL Horizons.

Collection Method

Calculated from JPL Horizons ephemeris data using the 'Mean of Date' Equinox Epoch method.

Time Range

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Freshness

Last updated 2026-03-13 07:42:20.251622; freshness should be verified.

Geography

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