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MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a Swedish satellite mission scheduled for launch in 2019. MATS science focuses on mesospheric wave activity and noctilucent clouds.

The platform consortium comprises OHB Sweden and ĆAC Microtec and the instrument consortium comprises, the Department of Meteorology (MISU) at Stockholm University, the Department of Earth and Space Sciences at Chalmers, the Space and Plasma Physics Group at KTH and Omnisys Instruments.

Primary measurement targets are O2 Atmospheric band dayglow and nightglow in the near infrared (759-767 nm) and sunlight scattered from noctilucent clouds in the ultraviolet (270-300 nm). While tomography provides horizontally and vertically resolved data, spectroscopy allows analysis in terms of mesospheric composition, temperature and cloud properties.

MATS features two science instruments: the limb imager and the nadir imager. MATS carries a total of seven imager channels that view the Earth's atmosphere in selected wavelength intervals. Six of these imager channels view the Earth's atmosphere in the limb direction looking tangentially through the atmosphere, while one imager channels views in the nadir direction.

The 50 kg MATS is the first satellite based on the InnoSat platform will also serve as a pilot mission in an intended program of small, low-cost research satellites funded by SNSB (Swedish National Space Board).

MATS was to be launched in late 2021 (delayed from 2019) as an auxiliary payload into a 600 km dawn/dusk circular sun-synchronous orbit on a shared launch on a Russian launch vehicle. In 2022 it was rebooked on an Electron KS (R).

Nation: Sweden
Type / Application: Aeronomy
Contractors: OHB Sweden, ĆAC Microtec (bus); Department of Meteorology (MISU) at Stockholm University, Department of Earth and Space Sciences at Chalmers, Space and Plasma Physics Group at KTH, Omnisys Instruments (payload)
Equipment: Limb imager, Nadir imager
Configuration: InnoSat-Medium bus
Power: Solar cells, batteries
Lifetime: 2 years
Mass: 50 kg
Orbit: 580 km × 598 km, 97.7°
Satellite COSPAR Date LS Launch Vehicle Remarks
MATS 2022-147A 04.11.2022 OnS LC-1B Electron KS (R)


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