High Precision, High Time Cadence Measurements of the Mg II Index of Solar Activity by the Extreme Ultraviolet Sensor aboard the NOAA GOES-R Series
- 1South African National Space Agency, SANSA, Hermanus, South Africa (snow@lasp.colorado.edu)
- 2University of Colorado Boulder, Laboratory for Atmospheric and Space Physics (LASP), Boulder, Colorado, USA
One of the instruments on the Geostationary Operational Environmental Satellites is the Extreme and Ultraviolet Sensor (EUVS). Channel C of EUVS measures the Magnesium II core-to-wing ratio with high signal-to-noise ratio at a cadence of three seconds. This presentation will describe the design of the instrument and give an overview of the data collected so far. Available data products range from the full-cadence operational data measured every three seconds to science-quality daily averages.
The instrument measures the spectrum of the Sun from 275 to 285 nm with a spectral resolution of 0.1 nm. It uses a diode array with a sampling width of 0.02 nm, providing five samples per slit width.
The first of these instruments became operational in January 2017 and continues through the present.
How to cite: Snow, M. and McClintock, W.: High Precision, High Time Cadence Measurements of the Mg II Index of Solar Activity by the Extreme Ultraviolet Sensor aboard the NOAA GOES-R Series, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-15007, https://doi.org/10.5194/egusphere-egu24-15007, 2024.
