satellites

satellite, launch year, bands, resolution quality

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

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

Sentinel 1/2

worldview

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?)