MODIS

Moderate-Resolution Imaging Spectroradiometer

modis pei

MODIS (Moderate Resolution Imaging Spectroradiometer) is as key instrument onboard the Terra and Aqua satellites as part of NASA's Earth Observing System (EOS). MODIS provides 250m, 500m and 1000m imagery of the Earth in 36 spectral bands from 0.4 µm to 14.4 µm. Between the two satellites the MODIS instruments can image the entire Earth every 1-2 days. The MODIS instruments were designed to provide data on large-scale global dynamics in the oceans, on land and in the lower atmosphere.


Terra	Aqua

MODIS Specifications
Imaging Mode	VNIR	SWIR	TIR
Spatial Resolution	250 m	500 m	1000 m
Spectral Bands	Bands 1-2	Bands 3-7	Bands 8-36
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Launch	December 18, 1999 (Terra), May 4, 2002 (Aqua)
Mission Life	Expected 6 years
Orbit	705 km 98.3 degree sun-synchronous
Nodal Crossing	10:30 AM (Terra), 1:30 PM (Aqua)
Revisit Time	Near daily
Swath Width	2330 km
Off-Nadir Imaging
Dynamic Range	12 bits per pixel
Stereo Imaging	No
Tasking	No

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