BepiColombo Ephemeris: Heliocentric Trajectory Coordinates from HelioWeb

Heliocentric trajectory data for the BepiColombo mission and Comet Borrelly, 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 sourced from JPL Horizons. The dataset was last updated on March 13, 2026.

Use Cases

• Modeling spacecraft ephemeris based on heliocentric trajectory data mentioned in the description
• Analyzing solar system object motion using Heliographic Inertial (HGI) coordinates
• Comparing coordinate transformations between Solar Ecliptic (SE) and Heliographic (HG) systems
• Studying long-term FPA (First Point of Aries) drift for celestial reference frames

Strengths

• Data originates from authoritative NASA and JPL Horizons sources
• Coordinates are calculated using the defined 'Mean of Date' Equinox Epoch method
• File formats include BIN, TEXT, and HTML for varied access

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count and dataset size are unknown, which may limit suitability assessment

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Calculated from original trajectory data sourced from JPL Horizons (http://ssd.jpl.nasa.gov/horizons.cgi)

Time Range

Daily data; specific temporal coverage is not specified

Freshness

Last updated 2026-03-13 03:31:46.642984

Geography

Heliocentric (solar system) scale