Uranus Heliocentric Trajectory Data in Multiple Coordinate Systems

HelioWeb provides daily heliocentric trajectory data for the planet Uranus, calculated from NASA JPL Horizons data. The dataset includes positions in Heliographic (HG), Heliographic Inertial (HGI), and Solar Ecliptic (SE) coordinate systems, using the 'Mean of Date' method for the Equinox Epoch. The data is maintained by the National Aeronautics and Space Administration and was last updated in March 2026.

Use Cases

• Modeling spacecraft ephemeris near planetary Lagrange points based on the description of using planet orbits as a proxy.
• Analyzing long-term planetary motion based on heliocentric longitude and latitude data.
• Comparing coordinate transformations between Heliographic, Heliographic Inertial, and Solar Ecliptic systems.
• Studying the drift of the First Point of Aries (FPA) reference frame over time.

Strengths

• Data originates from the authoritative NASA JPL Horizons system.
• Includes coordinates calculated using four defined methods for the Equinox Epoch (B1950.0, J2000.0, True of Date, Mean of Date).
• Last updated on 2026-03-13, indicating recent maintenance.

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.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Calculated from trajectory data taken from NASA JPL's Horizons system (http://ssd.jpl.nasa.gov/horizons.cgi).

Time Range

Daily data; specific temporal coverage is not stated.

Freshness

Last updated 2026-03-13 07:40:09.109586

Geography

Heliocentric (solar system) scale.