# Project Stratosphere: Sustainable CubeSat Design & Simulation
> Learn about the design of a low-cost 1U CubeSat for ozone layer monitoring. Features sensor selection, electronics simulation, and budget management.

Tags: cubesat, stem-education, environmental-monitoring, satellite-design, arduino, atmospheric-science, aerospace-engineering
## Project Stratosphere: Mission Overview
* **Project Scope:** Design and simulation of a functional 1U CubeSat prototype for atmospheric research over Wales.
* **Mission Format:** 1U CubeSat (10×10×10 cm) weighing 1–3 kg, intended for high-altitude balloon launch.
* **Target Environment:** Altitudes of 10–20 km with temperatures as low as −50°C.
* **Financials:** Successfully designed within a £200 limit, achieving a final budget of £88.30 (56% savings).

## Mission Aim & Objectives
* **Primary Goal:** Monitor ozone layer and UV radiation to study greenhouse gas effects.
* **Key Objectives:**
  * Design a complete sensing payload under budget.
  * Simulate electronics utilizing Tinkercad.
  * Maintain operation at extreme low temperatures using EPP foam and Mylar insulation.
  * Conduct feasibility studies and risk assessments.

## System Design & Payload Components
* **Microcontroller:** Seeeduino Lotus Cortex M0+ (ATSAMD21 chip).
* **Sensors:**
  * **Ozone:** DFRobot Gravity IIC (0–10 ppm range, 10 ppb resolution) - £43.08.
  * **GPS:** Grove AIR530 with 50,000m altitude mode - £11.77.
  * **Environmental:** Grove AHT20 for temperature/humidity and Grove Barometer SPA06-003.
* **Power:** 3.7V 2Ah LiPo battery with chemical heat packs for cold protection.
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