Record the VLF signal on one track and a WWV time signal on the other. This way VLF pulses can be correlated with the times of bright meteors seen from your observing site. It's also a good idea to conduct at least one observing session a few days before or a few days after the Leonids for comparison. The video images and VLF sounds will be exciting, but the most important part of the payload may be something else entirely. The balloon will also carry aloft a special device designed to capture actual Leonid meteoroids and return them to Earth.
Meteoroids are typically smaller than a grain of sand and much less dense.
We expose these materials to the air up in the stratosphere while the meteor shower is underway. When tiny particles strike the exposed xerogel, they stick. Then they return to Earth along with the rest of the payload. Aerogel is the lightest known solid, and is considered the best substance available for capturing fragile particles like comet dust without damaging them. Since aerogel is translucent scientists can use these tracks to find the tiny particles.