New Horizons Ephemeris: Daily Heliocentric Trajectory Coordinates

Daily heliocentric trajectory data for the New Horizons spacecraft, calculated using the 'Mean of Date' method for the Equinox Epoch. The data is provided in Heliographic (HG), Heliographic Inertial (HGI), and Solar Ecliptic (SE) coordinate systems. It originates from NASA and was last updated on 2026-03 13.

Use Cases

• Modeling spacecraft heliocentric trajectories based on the provided HG, HGI, and SE coordinate systems.
• Analyzing solar system dynamics by using the daily ephemeris data as a proxy for planetary orbits.
• Validating trajectory calculations by comparing with the 'Mean of Date' Equinox Epoch method described.
• Studying coordinate system transformations between Heliographic, Heliographic Inertial, and Solar Ecliptic frames.

Strengths

• Data originates from the authoritative NASA JPL Horizons system.
• Coordinates are calculated using a defined 'Mean of Date' method for the Equinox Epoch.
• Last updated on 2026-03-13, indicating recent maintenance.

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)

Collection Method

Calculated from original trajectory data sourced from NASA JPL's Horizons system.

Time Range

Daily data; specific date range is not provided in the description.

Freshness

Last updated 2026-03-13 05:56:14.760673

Geography

Heliocentric (solar system) coverage.