In this work we study the Zeeman effect on stratospheric O2 using ground-based microwave radiometer measurements. The interaction of the Earth magnetic field with the oxygen dipole leads to a splitting of O2 energy states. which polarizes the emission spectra. A special campaign was carried out in order to measure this effect in the oxygen emission line centered at 53. https://www.roneverhart.com/Asus-ROG-Zephyrus-GU502LV-BI7N8-15-6-4K-3840x2160-IPS-Intel-i7-10750H-2-6-GHz-16GB-1TB-SSD-NVIDIA-GeForce-RTX-2060-6G/