The Federal Aviation Administration says one of the two Wide Area Augmentation System geosynchronous satellites will drift out of usable orbit within the next few weeks. Intelsat told the FAA earlier that it had lost control of the Galaxy 15 satellite (PRN 135), which hosts the WAAS SBAS transponder.
FAA officials say they are watching the satellite and predict its imminent failure. Once that happens, WAAS will be disrupted for users in northwest Alaska. The rest of the WAAS service area — the U.S., Canada and Mexico — will operate normally, but will be reduced to a single WAAS broadcasting satellite (PRN 138).
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