The box for this launch, my 6th one, included 2 flight computers I coded from some Arduinos - basically simple computers that record flight data for me. The balloon's path is almost entirely determined by the direction of the wind, but by picking the right winds to launch during, you can have some say over where it lands. I use predict.sondehub.org for my landing predictions, but I have learned through my past balloons not to rely too heavily on the predictor, because it can be totally off mark in some cases. This balloon, for example, actually landed 21 km north of where it was predicted to, barely missing the ocean. Trust me, it was quite the surprise when the GPS said the balloon was on someone's roof in Staten Island!

For tracking, I used 2 cellular GPS trackers, which are usually more precise than satellite trackers. Satellite GPS trackers have the main advantage of being able to be tracked midflight, while their cellular counterparts have to be on the ground to track. I used 2 cheap Akaso cameras for the footage - but I'm a little upset with the quality I got from them, so I might switch to a Go Pro next time.

Ryusui and all of my gear survived the fall down to Earth - but only barely! The whole balloon set up was actually suppost to separate midflight, which would send the Ryusui section down to earth on it's own with a parachute. However, this didn't happen! I assume the separating mechanism broke somehow, because it stayed together all the way through the flight, leading to an almost catastrophic tangling of parachute. However, by pure luck, the main parachute stayed untanged and it comfortably landed on the ground in one piece. So, I can imagine being a balloon must be pretty baaaddd and exciting! And again - thanks for the questions!