Rosetta Ephemeris: Heliocentric Trajectories in HG, HGI, and SE Coordinates

NASA provides heliocentric trajectory data for the Rosetta spacecraft in Heliographic (HG), Heliographic Inertial (HGI), and Solar Ecliptic (SE) coordinate systems. The data is derived from JPL Horizons ephemeris calculations and uses the 'Mean of Date' method for defining the Equinox Epoch. This dataset was last updated on March 13, 2026.

Use Cases

• Model spacecraft heliocentric trajectories based on HG, HGI, and SE coordinate data.
• Analyze solar system dynamics using ephemeris data derived from JPL Horizons.
• Compare coordinate system transformations using the 'Mean of Date' Equinox Epoch method.

Strengths

• Data originates from authoritative sources NASA and JPL Horizons.
• Coordinates are calculated using the specific 'Mean of Date' Equinox Epoch method.
• The dataset is updated, with a last updated date of 2026-03-13.

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

Collection Method

Derived from JPL Horizons ephemeris calculations.

Freshness

Last updated 2026-03-13 11:41:24.845394; freshness should be verified.