GLONASS Earth Orientation Parameters from NASA CDDIS

NASA's Jet Propulsion Laboratory provides a time series of Earth orientation parameters derived from the GLONASS satellite constellation, sourced from IERS Bulletin A. The dataset is part of the GUARDIAN network and is hosted by NASA's CDDIS. Data is packaged as 7-day files with 1-day sampling intervals.

Use Cases

• Analyzing polar motion and Earth rotation variations for geodetic reference frame maintenance.
• Calibrating and validating satellite orbit models for the GLONASS constellation.
• Supporting real-time disaster information networks by providing precise Earth orientation data.
• Studying solid Earth processes like crustal motion and gravitational field interactions.

Strengths

• Data is generated by NASA's Jet Propulsion Laboratory, a leading authority in space geodesy.
• Parameters are derived from the operational GLONASS satellite constellation, providing a continuous data source.
• Time series data supports analysis of Earth orientation with 1-day sampling over 7-day files.

Limitations

• Key metadata such as row count, file size, and specific column names are not provided by any source.
• The license is ambiguously listed as 'other-license-specified' on Data.gov, with no details on NASA Earthdata.

Provenance

Source

NASA Jet Propulsion Laboratory's Global Differential GPS Operations Centers.

Collection Method

Generated from Earth orientation parameters in IERS Bulletin A for the GLONASS constellation.

Time Range

null

Freshness

2026-03-13 01:35:30.008290

Geography

Global