Constellation TLEs: Daily Orbital Data for 18 Satellite Constellations

Daily snapshots of Two-Line Element (TLE) data for 18 satellite constellations, sourced from CelesTrak and credited to NASA. The dataset is part of the Orbital Mechanics Datasets collection on Hugging Face, created by user juliensimon. It was last updated on 2026-04-12.

Use Cases

• Predicting satellite positions based on daily TLE snapshots.
• Analyzing orbital patterns for constellations like GPS, Galileo, and OneWeb mentioned in the description.
• Simulating satellite conjunctions or coverage for LEO broadband and Earth observation fleets.
• Validating orbital propagation models using the referenced GNSS and communications satellite data.

Strengths

• Covers 18 distinct satellite constellations as stated in the description.
• Includes major systems such as GPS, Galileo, BeiDou, GLONASS, OneWeb, and Iridium.
• Provides daily updates, suggesting regular data refresh.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• The full dataset description is hosted externally, requiring a page visit for complete context.

Provenance

Source

CelesTrak, with credit to NASA.

Collection Method

Daily snapshots of Two-Line Element (TLE) data.

Time Range

Daily coverage (implied by 'snapshots'); specific date range is unknown.

Freshness

Last updated 2026-04-12 06:53:46.

Geography

Global (satellite constellations in Earth orbit).