Predicting balloon paths

Today at Brighton Astro Louis and Russ described their project launching a balloon from their back garden to some insane height (30km?). They recovered some great images, as you might imagine.

The part I was particular taken with is that you can predict the path of these things really well. They used https://predict.sondehub.org/ and launched during the best conditions they could, allowing for advanced notice to aviation.

Uploaded image
Russ and Louis in front of the predicted and actual plot for their baloon flight.

The code behind it is a chunk of GPL licensed Python now, derived from a hunk of C from 10+ years ago. It pulls wind data from NOAA.

All very cool, and as you can see from the experience in the image above, amazingly accurate.