Telescope type: TMA korsch primary mirror: 1.2 m SiC All three mirrors of the telescope are using SiC: Mersen The primary mirror is the first optical element to be delivered. The telescope has three curved mirrors (including M1) and three flat mirrors, which direct the light to the two instruments on board with the aid of a dichroic filter that separates visible and near-infrared wavelengths. Launch time: 1 July 2023 NORAD ID 57209 International ID: 2023-092A celestrak Reference Space dot com Nature SPIE Boostec , EADS Astrium Lightweight telescope mirrors MRF polishing machine magneto rheological Challenge of SiC making