satellites

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satellite, launch year, bands, resolution quality

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Landsat 7

  • 1999

  • has Enhanced Thematic Mapper Plus (ETM+) sensor — medium s.res. 8 bands

    • RGB, NIR, SWIR, TIR, SWIR2, PAN

  • 16 day repeat cycle

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Landsat 8-9

  • 1999

  • has Enhanced Thematic Mapper Plus (ETM+) sensor — medium s.res. 9 bands

    • coastal, RGB, NIR, SWIR, TIR 1+2, SWIR2, PAN, cirrus

  • 16 day repeat cycle

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Sentinel 1/2

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worldview

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Terra MODIS and Aqua MODIS

  • 1999

  • mid/low s.res. 36 spectral bands

    • many coastal, atmospheric, cloud bands

  • 1-2 day repeat cycle

used for:

  • snow, ice, large area but fast changing atmospheric properties (weather?)