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Technical diagram illustrating the Thematic Mapper (TM) sensor operation on Landsat-D. The image shows a satellite in orbit above Earth with a detailed view of the TM scanning system, including the scan mirror, silicon detectors for bands 1-4, and cooled detectors for bands 5-7. The diagram includes TM detector details showing the array configuration, spectral ranges table for all seven bands (.45-.52 to 2.08-2.35 micrometers), scan direction indicators, orbit direction, and a 185 km swath width. Technical specifications show ground IFOV of 30m for bands 1-5 and 7, 120m for band 6, data rate of 84.9 mbps, and quantization level of 256.

Thematic Mapper (TM) Sensor Collection Diagram

Operational diagram of the Landsat-D Thematic Mapper showing the seven-band multispectral scanning system, detector arrangement, and Earth observation capabilities with improved spatial and spectral resolution.

Image Credit: NASA
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Image CreditNASA
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