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5.10.30-TASI-The-Vision-of-Thales-Alenia-Space

5.10.30-TASI-The-Vision-of-Thales-Alenia-Space

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EO Mission – Optical Satellites ConstellationLEO InclinedLEO SSOOptical Payload requires daylight and cloudfree observation conditions.Access area is nadir looking with a typicalFOV <strong>of</strong> +/-50°<strong>The</strong> revisit time depends on the selectedorbital design and on the number <strong>of</strong>deployed satellites.On the whole Mediterranean areas aconstellation <strong>of</strong> 12 Optical satellitesoperating at about 300km altitude is able toprovide an average revisit time ranging from3.5 hours (inclined solution) to 4.5 hours(SSO solution).Solar illumination condition (e.g. reduced inWinter season on the northern hemisphere)and cloud coverage distribution can degradethese performance.18All rights reserved © 2007, <strong>Thales</strong> <strong>Alenia</strong> <strong>Space</strong>

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