An interactive 3D space simulation built using Three.js (WebGL) to visualize different satellite orbits around the Earth.
- Mobin Ravan
- 3D Earth: A beautiful 3D model of Earth with an independent moving cloud layer.
- Interactive Orbit Paths: Visualizes various real-world satellite orbits (like ISS, GPS, GEO, and the Moon).
- Smooth Mouse Interaction: Easily hover over any satellite node to instantly view its details without lag.
- Dynamic Laser Line: Draws a laser beam from the selected satellite to the center of the Earth.
- Offline Map Support: Automatically generates a backup world map if the internet texture fails to load.
- Near Earth Surface
- ISS (International Space Station)
- Remote Sensing (EO)
- TOPEX/POSEIDON
- PAGEOS Balloon
- LAGEOS Geodetic Satellite
- GPS Constellation
- GEO (Geostationary Orbit)
- Luna (The Moon)
The orbital parameters used in this simulation are based on Table 3.6 from the book:
Seeber, G. (2003). Satellite Geodesy: Foundations, Methods, and Applications (2nd ed.). Walter de Gruyter.
| r (km) | h (km) | v_c (km/s) | U (min/h/d) | Example |
|---|---|---|---|---|
| 6,378 | 7 | 7.91 | 84.49 min | Near Earth's surface |
| 6,770 | 400 | 7.67 | 92.57 min | Space Station / Gravity field missions |
| 7,400 | 1,000 | 7.34 | 105.6 min | Earth observation satellites |
| 7,730 | 1,360 | 7.18 | 112.9 min | TOPEX/POSEIDON |
| 10,000 | 3,600 | 6.31 | 165.6 min | PAGEOS |
| 12,300 | 5,900 | 5.69 | 226.2 min | LAGEOS |
| 26,600 | 20,200 | 3.87 | 12 h | GPS |
| 42,160 | 35,790 | 3.07 | 23 h 56 min | Geostationary satellite |
| 384,400 | — | 1.02 | 27 d 8 h | Moon |