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MCST Calibration Information

Spectral Bands

MODIS data users require that spectral band responses be well defined and stable. The MODIS bandpass filters were constructed with Ion Assisted Deposition (IAD) so we expect that the center wavelength for any of the solar reflecting spectral bands will not vary during the lifetime of MODIS. Spectral shifts have occurred for previous filter instruments going from ambient to vacuum. The spectroradiometric Calibration Assembly (SRCA) will measure any prelaunch to on-orbit center wavelength shift. The SRCA has the capability of wavelength self-calibration for solar reflective bands.

Responsible Civil Servant: 
Dr. Jack Xiong <Xiaoxiong.Xiong.1@gsfc.nasa.gov>

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Last Update:  July 1, 2008