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Technical cutaway diagram of the Landsat-D Thematic Mapper instrument showing its internal components and optical system. The illustration displays labeled parts including the scan mirror assembly, secondary mirror, primary mirror, electronics module, thermal louvers, power supply multiplexer, prime focal plane, cooled focal plane, radiative cooler, relay optics assembly, and inchworm mechanism. The diagram shows the complex optical path and mechanical systems within the instrument housing.

Landsat-D Thematic Mapper Diagram

Detailed cross-sectional view of the Thematic Mapper instrument used on Landsat-D, illustrating the sophisticated optical and electronic systems that enable high-resolution multispectral Earth imaging.

Image Credit: NASA
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Image CreditNASA
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