SEE Spacecraft - Nanosats Database

Satellite name	Sun cubE onE (SEE)
Type	CubeSat
Units or mass	6U
Status	not launched, expected in 2027
Launcher	not launched
Organisation	University of Rome Tor Vergata
Institution	Company
Entity	Commercial
Country	Italy
Manufacturer	AIVT by Argotec
Operator	Argotec
Partners	Italian National Institute for Nuclear Physics (INFN), Argotec, Optec, NEXT Ingegneria dei Sistemi, University of Rome" La Sapienza "
Oneliner	Study the ultraviolet (UV), soft-X and Gamma emission of our star.
Description	Sun cubE onE (SEE) is a 12U CubeSat that, placed on a Sun Synchronous Orbit (SSO) at 550 km, will study the ultraviolet (UV), soft-X and Gamma emission of our star. SEE will enable studies on solar activity, Sun-Earth relationships, space weather and space security. SEE's main objectives include estimating the emission of solar flares, from soft-X to Gamma rays, and monitoring solar activity through images of the Sun in the Mg II doublet (280 nm). Soft-X and Gamma flows will be acquired with unprecedented temporal resolution and with a multi-wavelength approach thanks to the use of SiPM detectors. The spectrum of flares will be explored by keV to MeV energies with a nominal rate up to 10 kHz and with single photon detection capability. The UV telescope will allow to observe the evolution of UV emission on the solar disk both during part of the solar cycle and during flares. The UV emission at 280 nm is commonly used as a proxy of solar magnetic activity in the Sun-as-a-star paradigm and has relevance for the study of the thermosphere, ionosphere and stratospheric ozone. SEE data will be ancillary to radiative and particle data from space and terrestrial instruments (eg Solar Orbiter, CSES, GOES, DKIST, TSST) and geomagnetic data in a multi-messenger approach. The Sun cubE onE (SEE) is a 12U CubeSat mission in LEO that will investigate Gamma and X-ray fluxes and UV solar emission to support studies in Sun-Earth interaction and Space Weather. The mission is developed in the frame of the ALCOR program of the Italian Space Agency by a team composed of Tor Vergata University of Rome, Argotec, INFN, School of Aerospace Engineering, OPTEC, and NEXT. SEE’s main objective is to monitor the emission of solar flares, from soft-X to Gamma rays, and the solar activity through images of the Sun in the Fraunhofer Mg II doublet (280 nm). The Gamma and X-ray fluxes will be studied with unprecedented temporal resolution and with a multi-wavelength approach thanks to the combined use of silicon photodiode and SiPM-based detectors. The flare spectrum will be explored from the keV to the MeV range of energies by the same payload, and with a cadence greater than 10 kHz, to unveil the sources of the solar flares. The UV telescope will allow us to observe the evolution of UV emission on the solar disk both during part of the solar cycle and during flares.
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Last modified: 2025-04-23