Polar-orbiting Satellites
Polar-orbiting satellites are spacecraft that orbit the Earth in a north-south direction, passing over the poles on each orbit. These satellites are used for a variety of purposes, including weather forecasting, environmental monitoring, and scientific research. Polar-orbiting satellites typically operate at altitudes between 500 and 800 kilometers, and complete one orbit of the Earth every 90 minutes. They are able to provide global coverage of the Earth's surface, and can collect data on a wide range of environmental variables, including temperature, humidity, atmospheric pressure, and sea surface temperature. Polar-orbiting satellites are also used to monitor changes in the Earth's ice caps, and to track the movement of ocean currents and weather patterns.
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