SATNET

3D satellite visualization and launch-data analysis.

Local development

npm install
cp .env.example .env

Set VITE_ION_TOKEN in .env, then run npm run dev and open http://localhost:4170/. Use npm run build to build and npm run serve to preview the production build.

Docker

The Cesium token is embedded into the static frontend at image-build time. Define it explicitly, then build and run:

export VITE_ION_TOKEN='your-cesium-ion-token'
docker build --build-arg VITE_ION_TOKEN="$VITE_ION_TOKEN" -t satnet .
docker run -d --name satnet --restart unless-stopped -p 4170:80 satnet

Passing VITE_ION_TOKEN to docker run is not sufficient; rebuild the image when changing the token. The token is delivered to browsers, so configure appropriate restrictions in Cesium ion.

Visualization

3D Globe

3D Globe Zoom Levels

(a) Zoomed-in View

(b) Zoomed-out View

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Satellite Orbits with Information Card

(a) Low Earth Orbit (LEO)	(b) Medium Earth Orbit (MEO)
(c) Geostationary Orbit (GEO)	(d) High Orbit (HEO)

2D Map

Satellite Launching Animation

The launch animation is driven by time and location on Earth. Once the launch time matches the Cesium global clock, the animation begins, and new entities are added to the 2D Cesium Viewer.

Country Circles

The size of the country circle represents the number of satellites launched in the previous year, with the circle's center placed at the geographical coordinates of each country's capital.

Barchart: Ranking Launches by Country and Agent

(a) Number of satellites launched by each country

(b) Number of satellites launched by agents

The barchart dynamically ranks satellite launches by country and agent on a yearly basis. Users can toggle between country and agent views and apply filters to selectively display or hide certain entities.

Websites for Reference

Examples / its Github repo

• https://www.starlinkmap.org/
• https://github.com/Flowm/satvis
• https://spaceaware.io/

Others

• https://github.com/jeremysuh/3D-Satellite-Tracker
• https://github.com/andrewkihs/satellite-radio
• https://github.com/RuiZhang2Penn/Shinning

Data Souce

• https://celestrak.org/NORAD/elements/
• https://satdb.ethz.ch/ Processed 'celestrak' data APIs
• https://github.com/r-spacex/SpaceX-API/tree/master/docs/starlink/v4 might be official data
• https://planet4589.org/space/gcat/web/sites/index.html Launch sites

The Earth texture

• https://planetpixelemporium.com/earth.html