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Design and Field-of-View Calibration of 114-660-GHz Optics of the Earth Observing System Microwave Limb Sounder
- Source :
- IEEE Transactions on Geoscience and Remote Sensing. 44(5)
- Publication Year :
- 2006
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 2006.
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Abstract
- This paper describes the optics design and field-of view (FOV) calibration for five radiometers covering 114-660 GHz which share a common antenna in the Microwave Limb Sounder instrument on the National Aeronautics and Space Administration's Aura satellite. Details of near-field pattern measurements are presented. Estimated systematic scaling uncertainties (3/spl sigma/) on calibrated limb emissions, due to FOV calibration uncertainties, are below 0.4%. 3/spl sigma/ uncertainties in beamwidth and relative pointing of radiometer boresights are 0.006A(deg) and 0.003A(deg) , respectively. The uncertainty in modeled instrument response, due to the scan dependence of FOV patterns, is less than +/- 0.24 K equivalent blackbody temperature. Refinements to the calibration using in-flight data are presented.
- Subjects :
- Optics
Subjects
Details
- Language :
- English
- Volume :
- 44
- Issue :
- 5
- Database :
- NASA Technical Reports
- Journal :
- IEEE Transactions on Geoscience and Remote Sensing
- Publication Type :
- Report
- Accession number :
- edsnas.20070034775
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1109/TGRS.2006.873234