As part of the CTE: Mission CubeSat Challenge Program, Magnitude.io conducted a very informative webcast outlining the details of planning, launching and tracking a high altitude balloon (HAB). Highly recommended.

Watch the video here: https://drive.google.com/file/d/1xEjkH6-O_IB82LlpEFltDetJx49A9A94/view

Please let me know if the link is no longer valid.