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Instrument: MSU : Microwave Sounding Unit
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Associated Platforms

Spectral/Frequency Information
Wavelength Keyword: Microwave
Number Channels: 4
Spectral/Frequency Coverage/Range: 50.3, 53.74, 54.96, and 57.95 GHz,

Related Data Sets
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The MSU is the descendant of the Scanning Microwave
Spectrometer (SCAMS) flown on Nimbus-6, which in turn evolved
from the Nimbus-5 Microwave Spectrometer (NEMS). NEMS was the
first microwave temperature sounder flown in space. The MSU is a
four channel Dicke radiometer making passive measurements in
regions of the 5.5-mm oxygen region (50.3 GHz, 53.74 GHz, 54.96
GHz, and 57.05 GHz). The dynamic range of the MSU is 0 K to 350
K, with a noise equivalent temperature of 0.3 K. The ground
resolution at nadir is 109 km; the swath width is 2347.2 km.
The MSU, flown on the Advanced TIROS-N (ATN), was used in
conjunction with the SSU and HIRS/2 as part of the TOVS package
(see the sensor reference for TIROS OPER VERTICAL SOUNDER).
Entry taken from:
Rao,P.K., S.J. Holmes, R.K. Anderson, J.S. Winston, P.E. Lehr,
Weather Satellites: Systems, Data, and Environmental
Applications, American Meteorological Society, Boston, 1990.
ISBN 0-933876-66-1
Colwell,R.N. (Editor-in-Chief), Manual of Remote Sensing: Second
Edition, Volume I, American Society of Photogrammetry, 1983.
Cornillon, A Guide to Environmental Satellite Data, University of
Rhode Island Marine Technical Report 79, 1982.

Online Resources

Instrument Logistics
Instrument Owner: NASA Jet Propulsion Laboratory