SEVIRI Scan Mirror

M. Lampton

UCB SSL

Oct 2005

SEVIRI

• Spinning Enhanced Visible IR Imager

• Main instrument aboard MSG-1 (Meteosat Second Generation)

• Zerodur material

• Finished by Zeiss

• Very similar to SNAP folding flat mirror

• Mounting features could be of interest to us

http://www.schott.com/magazine/english/download/info102/si102_07_satellite.pdf

“Zerodur In Space” Schott, 2002

830 x 530 x 67mm; 15.6 kg; 70% lightweighted

Flat fold mirror

• Optical design of TMA requires tight packaging between FM and passive cold stop while avoiding vignetting

• ULE, Zerodur, Be, SiC are OK

• Not a development driver

Zerodur: SEVIRI mirror, Zeiss, 53x83cm, 16kg

SiC: S. Roberts, DAO 2001; ASTRIUM; 50 x 80cm