GPS Satellite Real-Time Precise Orbits and Velocities

GUARDIAN GPS daily accumulated real-time Precise Orbit Determination (POD) orbits provide a time series of position and velocity components for healthy GPS satellites, sampled every minute throughout the day. The dataset includes formal 1-sigma uncertainties and is generated in real-time by JPL's Global Differential GPS Operations Centers. Daily files can be concatenated to create longer time series for analysis.

Use Cases

• Analyzing real-time GPS satellite orbit perturbations for geodetic reference frame maintenance.
• Validating and calibrating satellite orbit prediction models using precise position and velocity time series.
• Studying atmospheric effects on signal propagation by using precise satellite positions as a reference.
• Concatenating daily orbit files to investigate long-term trends in the GPS constellation's orbital characteristics.

Strengths

• Data includes formal 1-sigma uncertainty estimates for both position and velocity components.
• Generated in real-time by JPL's Global Differential GPS Operations Centers, indicating operational reliability.
• Provides high-temporal-resolution data with one-minute sampling throughout each 24-hour file.

Limitations

• Specific column names, row counts, and total dataset size are not provided by any source.
• Sources conflict on license details: one specifies 'other-license-specified', while another lists no license.

Provenance

Source

NASA/Jet Propulsion Laboratory (JPL) Global Differential GPS Operations Centers.

Collection Method

Real-time generation and accumulation of Precise Orbit Determination (POD) data.

Time Range

Daily files, concatenatable for larger time coverage.

Freshness

2026-03-13 01:34:43.818109

Geography

Global coverage from the GPS satellite constellation.