Prediction of the Sun-Glint Locations for the Communication, Ocean and Meteorological Satellite

For the Communication, Ocean and Meteorological Satellite (COMS) which will be launched in 2008, an algorithm for finding the precise location of the sun-glint point on the ocean surface is studied. The precise locations of the sun-glint are estimated by considering azimuth and elevation angles of S...

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Bibliographic Details
Published in:Journal of Astronomy and Space Sciences
Main Authors: Jae-Ik Park, Kyu-Hong Choi, Sang-Young Park, Joo-Hyung Ryu, Yu-Hwan Ahn, jae-Woo Park, Byoung Soo Kim
Format: Article in Journal/Newspaper
Language:English
Published: The Korean Space Science Society 2005
Subjects:
communication ocean and meteorological satellite (COMS)
geostationary-orbit
sun-glint
Astronomy
QB1-991
North Pole
South Pole
South pole
Online Access:https://doi.org/10.5140/JASS.2005.22.3.263
https://doaj.org/article/775018c306f440c296cb61d35daecc6c
Description
Summary:For the Communication, Ocean and Meteorological Satellite (COMS) which will be launched in 2008, an algorithm for finding the precise location of the sun-glint point on the ocean surface is studied. The precise locations of the sun-glint are estimated by considering azimuth and elevation angles of Sun-satellite-Earth geometric position and the law of reflection. The obtained nonlinear equations are solved by using the Newton-Raphson method. As a result, when COMS is located at 116.2°E or 128.2°E longitude, the sun-glint covers region of ±10° (N-S) latitude and 80-150° (E-W) longitude. The diurnal path of the sun-glint in the southern hemisphere is curved towards the North Pole, and the path in the northern hemisphere is forwards the south pole. The algorithm presented in this paper can be applied to predict the precise location of sun-glint region in any other geostationary satellites.

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