STEREO-B Ephemeris: Heliocentric Trajectories in HG, HGI, and SE Coordinates

Heliocentric trajectory data for the STEREO-B spacecraft in Heliographic (HG), Heliographic Inertial (HGI), and Solar Ecliptic (SE) coordinate systems. The data originates from NASA's JPL Horizons system and is processed using the 'Mean of Date' method for the Equinox Epoch. The dataset is maintained by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Modeling spacecraft orbital dynamics based on heliocentric trajectory data.
• Analyzing solar wind and heliospheric phenomena relative to spacecraft position.
• Converting coordinate systems for scientific analysis based on HG, HGI, and SE coordinates.
• Validating trajectory calculations using the 'Mean of Date' Equinox Epoch method.

Strengths

• Data originates from NASA's JPL Horizons system, a recognized authority for ephemeris data.
• Coordinates are calculated using the 'Mean of Date' Equinox Epoch method, a standard approach.
• The dataset is maintained by the National Aeronautics and Space Administration.

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 JPL Horizons trajectory data using the 'Mean of Date' Equinox Epoch method.

Freshness

Last updated 2026-03-13 10:54:08.697038; freshness should be verified.