Requirements
Define mission objectives, required sensors, success criteria, data products, and public-release boundaries.

PAYLOAD SYSTEMS ENGINEERING
A complete engineering page should show how the balloon mission is designed, operated, recovered, and published. This console now connects the process to exact Spring 2026 evidence.
Define mission objectives, required sensors, success criteria, data products, and public-release boundaries.
Structure, mass, battery endurance, sensor mounting, insulation, camera retention, SD-card access.
Weather review, balloon fill, launch roles, APRS tracking, chase plan, recovery, and payload custody.
Unit consistency, source labels, workbook reconciliation, plots, gallery, and mission report.
| Subsystem | Purpose | Evidence |
|---|---|---|
| Structure | Protect avionics and sensors during ascent, descent, and recovery. | Mass budget, CAD, photos, drop/fit checks. |
| Power | Keep sensors, GPS, camera, and logger alive in cold conditions. | Battery chemistry, current budget, cold test. |
| Telemetry | Track flight path and support recovery. | APRS export, timestamps, coordinates. |
| Science sensors | Measure particulate, CO2, temperature, humidity, and count rate. | Datasheets, calibration notes, raw workbooks. |
| Recovery | Preserve payload and data integrity after landing. | Landing photos, custody notes, card image. |
Every published number must include source and unit: ft/m for altitude, mg/m3 for particles, ppm for CO2, deg C for temperature, percent RH, CPM, and uSv/h.