Well known papers about space propagation
- SpaceTrack Report #3
- SGP Model Research
- Astrodynamics Software - π€©Introduce techniques for development
- Revisiting Spacetrack Report #3 - π€‘ SGP4 code
- [Julia] SatelliteToolbox.jl - π¨π¦
- [Swift] SatelliteKit - π¨π¦
- [JavaScript] SatelliteKit - π¨π¦
- [Python] SGP4 - π¨π¦
- [Python] Skyfield - π¨π¦
Ephemeris file in NASA .bsp format