To: Nancy Haft who wrote (18598 ) 11/19/1998 9:00:00 PM From: Jon Koplik Respond to of 152472
Off topic - WSJ's wrap-up regarding meteor shower : (This is not real interesting, but you won't know that until you waste your time reading it). ******************************************* November 19, 1998 Leonid Meteor Shower Leaves Orbiting 'Birds' Untouched By RAJU NARISETTI Staff Reporter of THE WALL STREET JOURNAL They came, few saw them, and off they went. The peak of the Leonid meteor storm, the worst space hurricane in 32 years, appears to have passed by Earth without any noticeable impact on the 600 or so satellites orbiting the planet. After weeks of preparation and being in a state of high alert for possible damage to their "birds," satellite owners around the world began relaxing on news that the storm wasn't as intense as feared and has apparently caused no noticeable problems to satellites. "We were prepared for the worst and were pleased the [meteor] shower did not directly threaten our space assets," said Major General Gerald Perryman, commander of 14th Air Force, which encompasses all U.S. Air Force space operations. "We proceeded on the side of caution to protect those assets and are pleased to report that our space forces are on-station and healthy." Commercial satellite operators, including GE American Communications Inc., a unit of General Electric Co., and Intelsat, which operates a network of 25 satellites, also gave clean bills of health for their satellites, which are used by newspaper, telephone, cable TV and other companies to transmit signals. Scientists and meteor trackers reported a dazzling display of light in skies over Asia, where they had a ring-side view of the storm's peak. Daylight made the meteors invisible in most of the Western Hemisphere. The Leonid is made up of debris from the Temple-Tuttle comet. Because Earth ran into the debris just nine months after the comet blew by the sun, creating a plume of sand and dust, the debris was considered potentially dangerous for sensitive instruments on satellites. Most satellite operators said they powered down unnecessary onboard electronics, avoided special maneuvers and in some cases protected sensitive panels by moving the satellites around. "We always knew that the probability of anything happening was pretty low," said William Ailor, director of Aerospace Corp.'s Center for Orbital and Reentry Debris Study, who was among the first to warn companies about the Leonid. "The idea was to make sure people were prepared," he said. "Who knows, the precautions might have actually helped." Mr. Ailor said it will take several months for various teams around the world to analyze their data, at which time they might find there were "subtle effects on satellites." Copyright © 1998 Dow Jones & Company, Inc. All Rights Reserved.