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Terra/Aqua MODIS
Terra/Aqua MODIS
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths.
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Operators: NASA (National Aeronautics and Space Administration)
Launch Dates / Status:
Terra: 18 December 1999 - operating nominally
Aqua: 4 May 2002 - operating nominally
Orbit Height: 705 km
Orbit Type: Sun-synchronous circular
Repeat Cycle: 16 days
Resolution: 1 km
Swath Width: 2330 km
Onboard Sensors provided under TPM:
+ MODIS (Moderate-Resolution Imaging Spectroradiometer)


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