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Determination of the Primary Specular Point in the Sunglint Pattern of a Polar-Orbiting Satellite Image

A mathematical procedure for calculating the location of the primary specular point (PSP) in polar-orbiting satellite data is described in step-by-step detail. For purposes of this discussion, the PSP is defined as 'that point on the great circle arc perpendicular to the satellite subpoint trac...

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Main Authors:	Tsui,Ted L, Fett,Robert W
Format:	Report
Language:	English
Subjects:	Great circle IMAGE PROCESSING MATHEMATICAL PREDICTION METEOROLOGICAL SATELLITES Numerical Mathematics PE62759N POLAR ORBIT TRAJECTORIES POSITION FINDING REFLECTION Spacecraft Trajectories and Reentry Spherical trigonometry Sunglint SUNLIGHT TRIGONOMETRY Unmanned Spacecraft WU629
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creator	Tsui,Ted L Fett,Robert W
description	A mathematical procedure for calculating the location of the primary specular point (PSP) in polar-orbiting satellite data is described in step-by-step detail. For purposes of this discussion, the PSP is defined as 'that point on the great circle arc perpendicular to the satellite subpoint track passing through the satellite subpoint and the solar subpoint where the angle of incidence of the sun's rays on a horizontal plane (measured from the local zenith) is equal to the angle of reflection of the sun's rays to the satellite in space.' The procedure can easily be developed into a small computer program that can be run on a minicomputer or on a programmable calculator. (Author)
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For purposes of this discussion, the PSP is defined as 'that point on the great circle arc perpendicular to the satellite subpoint track passing through the satellite subpoint and the solar subpoint where the angle of incidence of the sun's rays on a horizontal plane (measured from the local zenith) is equal to the angle of reflection of the sun's rays to the satellite in space.' The procedure can easily be developed into a small computer program that can be run on a minicomputer or on a programmable calculator. 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subjects	Great circle IMAGE PROCESSING MATHEMATICAL PREDICTION METEOROLOGICAL SATELLITES Numerical Mathematics PE62759N POLAR ORBIT TRAJECTORIES POSITION FINDING REFLECTION Spacecraft Trajectories and Reentry Spherical trigonometry Sunglint SUNLIGHT TRIGONOMETRY Unmanned Spacecraft WU629
title	Determination of the Primary Specular Point in the Sunglint Pattern of a Polar-Orbiting Satellite Image
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