Track the International Space Station and get pass predictions.
ISS Viewer predicts visible ISS passes for a given location and displays them on a map. It can also calculate and display the station's position in real time.
The app periodically fetches orbital information about ISS from celestrak.org. The PyEphem library is then used to predict future passes based on this data and Satellite.js is used for calculating the current position.
- Node.js 18.x
- Redis server - used as a cache for API requests.
- Python 3
- PyEphem
On Debian GNU/Linux they can be quickly installed by running:
sudo apt install nodejs npm redis python3-ephem
npm install
npm run build
For a production build use npm run build-prod.
Make sure redis-server is running (otherwise the app will exit with an error) and run node app.js to start the app. Then navigate to http://localhost:3000.
For development you can instead run npx nodemon app.js. This will restart the backend automatically on changes.
Live version is at: issviewer.com