# An open source toolkit for the tracking, termination and recovery of high altitude balloon flights and payloads

## TL;DR

This paper introduces an open source toolkit with electronic devices and software for tracking, terminating, and recovering high altitude balloon flights, demonstrated through over 20 successful flights reaching 32,000 meters.

## Contribution

The paper presents a comprehensive, flight-proven open source toolkit for high altitude balloon management, including tracking, cut-down, and recovery systems, with detailed technology readiness assessment.

## Key findings

- Over 20 successful flights at 32,000 m altitude
- Toolkit enables tracking, cut-down, and recovery operations
- Suitable for weather and sounding balloon applications

## Abstract

We present an open source toolkit of flight-proven electronic devices which can be used to track, terminate and recover high altitude balloon flights and payloads. Comprising a beacon, pyrotechnic and non-pyrotechnic cut-down devices plus associated software, the toolkit can be used to: (i) track the location of a flight via Iridium satellite communication; (ii) release lift and/or float balloons manually or at pre-defined altitudes; (iii) locate the payload after descent. The size and mass of the toolkit make it suitable for use on weather or sounding balloon flights. We describe the technology readiness level of the toolkit, based on over 20 successful flights to altitudes of typically 32,000 m.