Space Datasets
235 open datasets for orbital mechanics, space weather, astronomy & physics
Featured Datasets
Space-Track TLE History
238 million Two-Line Element records spanning 68 years of orbital tracking data.
Starlink Fleet Data
Starlink constellation fleet tracking with orbital parameters and status.
Constellation TLEs (Latest)
Latest TLEs for GPS, Galileo, GLONASS, BeiDou, and other navigation constellations.
SpaceX Launches
Complete SpaceX launch history with mission details, outcomes, and booster landings.
DONKI Space Weather Events
NASA DONKI coronal mass ejections, solar energetic particles, and geomagnetic storms.
Solar Flare Events
GOES X-ray solar flare events with class, peak flux, and active region data.
Solar Wind
Real-time solar wind speed, density, and magnetic field from DSCOVR and ACE.
Kp Geomagnetic Index
Planetary Kp index measuring geomagnetic disturbance levels.
Gaia DR3 Eclipsing Binaries
Gaia DR3 catalog of eclipsing binary star systems with orbital parameters.
Pulsars
ATNF pulsar catalog with spin periods, dispersion measures, and sky positions.
Quasars
Million Quasars catalog with redshifts, magnitudes, and classifications.
Gravitational Wave Events
LIGO/Virgo/KAGRA gravitational wave detection events and parameters.
Exoplanets
NASA Exoplanet Archive confirmed planets with orbital and physical properties.
ExoMars TGO Observations
ESA ExoMars Trace Gas Orbiter instrument observations of Mars atmosphere.
Mars Craters
Robbins Mars crater catalog with diameters, depths, and geographic coordinates.
NEO Close Approaches
Near-Earth asteroid close approaches from 1900 to 2100 with distance and velocity.
Small Body Database
JPL Small-Body Database with orbital elements for asteroids and comets.
Fireballs & Bolides
CNEOS fireball and bolide events with radiated energy and impact locations.
Fermi 4FGL Catalog
Fermi LAT 4FGL gamma-ray source catalog with fluxes and spectral properties.
Cosmic Ray Flux
Cosmic ray neutron monitor flux measurements from worldwide stations.
Frequently Asked Questions
- What datasets has Julien Simon published?
- Julien Simon publishes 235+ open datasets on Hugging Face covering orbital mechanics, space weather, astronomy, and physics. Sources include NASA, ESA, NOAA, and other public scientific repositories, packaged in efficient Parquet format with CC-BY-4.0 licensing.
- Are Julien Simon's datasets free to use?
- Yes, all datasets are released under CC-BY-4.0 (free for any use, including commercial, with attribution). They are distributed in Apache Parquet format on Hugging Face at https://huggingface.co/juliensimon, optimized for efficient analytics and ML workflows.
- What can I do with these datasets?
- The datasets support a wide range of use cases: training ML models on satellite-tracking data, analyzing solar activity and space weather, exploring asteroid and exoplanet catalogs, benchmarking time-series models, and powering educational content. They are used by researchers, students, and AI practitioners worldwide.