Skywatch Observatory
Pyranometer: 676 W/m² Pyrgeometer: 281 W/m² Pyra Diffuse: 224 W/m² Daily Precip: 0 mm Rain Intensity: 0.0 mm/hr Snow Depth: 10 mm Ozone: 25 ppb Cloud Base: No Cloud Base Detected 16:37 Mar-28-2026 UTC

Pyranometer

The Kipp & Zonen CMP 3 pyranometer measures shortwave solar irradiance (W/m²) incident on a horizontal surface. The plot below shows the latest 24-hour time series.

24-Hour Time Series

24-hour pyranometer time series for March 22, 2026, showing shortwave surface irradiance in watts per square meter.

Last updated: 18:27 UTC, March 27, 2026

About This Instrument

The pyranometer is mounted on the east platform of the Skywatch Observatory on the roof of the Duane Physics Building. It measures the total hemispheric shortwave irradiance from 300 to 2800 nm. Data is recorded every second and averaged over one-minute intervals.