High-Cadence Science-Quality Solar EUV Irradiances from GOES-14 and -15

The Extreme Ultraviolet Sensors (EUVS) on the Geostationary Operational Environmental Satellite (GOES) NOP series satellites measured solar irradiance in broadband extreme ultraviolet (EUV) wavelengths at a high cadence of one observation every 10.24 seconds. Long-term, well-calibrated measurements of strong EUV Lyman alpha (121.6 nm) and Helium II (30.4 nm) lines are useful for monitoring the Sun and understanding the impacts of solar variability on Earth's upper atmosphere. In this project, we rescaled the measured broadband irradiances to line irradiances in both the Lyman alpha and Helium II bands for GOES-14 and -15 for the years 2009 to 2020. We present our newly reprocessed data with improved calibrations and data format, method of calibration, comparisons with the more recent GOES-16 and -17 EUV line irradiances, and possible applications of this new and improved dataset.