NOAA’s GOES-17 satellite has transmitted its first data from the LASP-built Extreme ultraviolet and X-ray Irradiance Sensors (EXIS) space weather monitoring instrument.
EXIS continually monitors the brightness of the Sun. Every 30 seconds, EXIS will create a picture of the Sun’s output in the part of the spectrum which includes X-ray and ultraviolet light—wavelengths that are absorbed by the outermost layers of our Earth’s atmosphere and ionosphere.