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http://washingtontimes.com/national/20040503-103302-1316r.htm
By Lydia Pound THE WASHINGTON TIMES The National Oceanic and Atmospheric Administration is planning to launch by the end of the year the first satellites using "star trackers" instead of Earth sensors to monitor weather patterns more precisely. Scheduled for release in December, the Geostationary Operational Environmental Satellite (GOES) series is expected to produce more precise storm images. The star tracker technology uses the positions of stars to estimate altitude and requires no information from the ground. The three satellites in the series will show short-term meteorological activity, commonly called "now-casting." All GOES satellites, including four others already in space, hover above one spot on the Earth's surface as they match the planet's rotational speed 22,300 miles overhead. They act as trigger alerts for severe weather such as tornadoes, flash floods, hailstorms and hurricanes. Their coverage area is about one-third of the Earth, concentrating on North America and South America. With the planned launch, NOAA has said it will retire one of the satellites in space — GOES-8 — by putting it through the Earth's atmosphere, where it will incinerate. GOES-8 monitored the eastern and central United States, the Atlantic Ocean, the Caribbean and the Gulf of Mexico. .... peace, -*- Charles M. Kozierok ) Co-moderator, ne.weather.moderated (news:ne.weather.moderated) Join us for weather info and discussion in a civil, low-noise environment. Contact me for assistance in having ne.weather.moderated added to your server. |
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