Sun CubE OnE: A multi-wavelength synoptic solar micro satellite

The Sun cubE onE (SEE) is a 12U CubeSat mission proposed for phase A/B study to the Italian Space Agency that will investigate Gamma and X-ray fluxes ultraviolet (UV) solar emission support studies in Sun-Earth interaction Weather from LEO. More detail, SEE’s primary goals are measure flares soft-X ray energy range monitor activity Fraunhofer Mg II doublet at 280 nm, taking advantage of full disk imager payload. be studied with unprecedented temporal resolution multi-wavelength approach thanks combined use silicon photodiode photomultiplier (SiPM) -based detectors. flare spectrum explored keV MeV energies by same payload, cadence up 10 kHz single-photon detection capabilities unveil sources flares. covers bands used GOES satellites, which standard magnitude definition. At time SiPM detectors scintillators allow cover non-thermal bremsstrahlung gamma range. Given its UV imaging capabilities, SEE key space asset detailed on activity, especially relation radiation strongly interacts upper layers Earth’s atmosphere, safety, included field human exploration. main goal payload evolution band two different scales: yearly variations along cycle transient during events. index commonly as proxy Sun-as-a-star paradigm, irradiance correlate stratospheric ozone concentrations other physical parameters Earth high atmosphere. data together ground-based observatories provide Solar (e.g. Orbiter, IRIS, GONG, TSST), particle GOES, MAXI, CSES) geomagnetic multi-instrument/multi-wavelength/multi-messenger approach.