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What are the characteristics of geostationary satellite and polar satellite ? Why polar satellite are called weather satellite -Explain. |
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Answer» Solution :Geostationary satellite are PLACED on the equatorial PLANE at a height of nearly 36000 km from the earth.s surface. Since the motion of such a satellite is same as that of the DIURNAL motion of the earth, the satellite seems to be stationary with respect to the earth.s surface. On the other hand, polar satellite are placed at a height of 800 km, from the surface of the earth, aligned with the polar plane. To revolve around the earth once, a polar satellite takes about 2 hours. Polar satellite are placed comparatively nearer to the earth.s surface and travel over a vast area while revolving . THUS they are suitable for observing the WEATHER and hence, are called .weather satellite.. |
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