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Abstract

The second generation instrument of the German Modular Optoelectronic Multispectral/Stereo Scanner (MOMS-02) was first flown aboard SpaceShuttle flight STS-55 in the frame of the German D2 mission in 1993. During the mission approximately 8 mio. km2 of data have been recorded from a mean orbit altitude of 296 km resulting in a GIFOV of 4.5 x 4.5 m2 in the nadir panchromatic and 13.5 x 13.5 m2 in the panchromatic for/aft and multispectral bands. The spatial and spectral information content, estimated by validation methods, confirms the newly designed band-design. Residual image distortions occurred due to malfunctioning electronic modules and due to a missing stable thermal environment during the D2 mission. MOMS-02 was refurbished and will acquire data in a preoperational manner aboard the Russian PRIRODA module mounted on the MIR space station for a duration of 18 month. An orbit altitude of about 380-405 km will result in a spatial resolution of 5.5 x 5.5 m2 in the nadir looking panchromatic band and 16.5 x 16.5 m2 in for/aft stereo and multispectral modules. First data are expected by the end of Sept. "96. An accompanying intensive calibration and validation program with partners around the world will be conducted to verify and guarantee high data quality as well as to provide up-to-date calibration coefficients for the users.