Proba-2's LYRA solar intensity measurements available
As the Sun awakens from a prolonged period of low activity, solar intensity measurements from Proba-2's LYRA instrument are now available to the scientific community.
Calibrated data from Proba-2's SWAP Sun imager has been available for some time, but this is the first time that calibrated LYRA data has been made public.
LYRA is a small solar ultraviolet (UV-EUV) radiometer which is designed to observe solar irradiance - the radiative output of the Sun - at the highest cadence yet achieved (> 20 Hz) in four ultraviolet wavelength ranges. These channels were chosen for their relevance to aeronomy, space weather and solar physics applications.
This means that the solar output in different UV bands is sampled at least once every 50 milliseconds. Such rapid sampling makes it possible to see how energy is released during solar events. For more information, see the top right hand link.
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