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2018年7月26日星期四

NOAA的下一代氣象衛星仍然運作不良,及可能無法修復

NOAA的下一代氣象衛星仍然運作不良,及可能無法修復
NOAA’s Next-Gen Weather Satellite is Still Malfunctioning and May Not be Fixable
美國國家海洋暨大氣總署的110億美元GOES項目中的第二顆衛星-其最重要的儀器-繼續經歷問題,而官員仍然不確定錯在那裡。
The second satellite in NOAA’s $11 billion GOES program continues to experience issues with its most important instrument and officials still aren’t sure what’s wrong.
JULY 24, 2018
The National Oceanic and Atmospheric Administration’s newest weather satellite—part of the $11 billion Geostationary Operational Environmental Satellite constellation set to operate for the next 20 years—is broken and officials still aren’t sure what’s wrong or how to fix it.

Launched in March, the GOES-17 satellite was set to monitor weather events and natural disasters such as wildfires or volcanic eruptions in the western half of the United States, but officials identified cooling issues with the satellite’s primary instrument in May.

Officials told reporters Tuesday that two review teams consisting of NOAA, NASA and industry personnel continue to investigate what’s wrong with the Advanced Baseline Imager instrument and how to mitigate the loss to ensure weather forecasters on the ground continue to get high-quality satellite data.

In the meantime, GOES-17 remains in a holding pattern orbit 22,000 miles above the Earth’s surface, and the launch dates of two future GOES satellites, the next of which is scheduled for 2020, could be pushed back if experts and engineers aren’t able to figure out what went wrong with the older sibling satellite.

"There's no doubt that the problems we are experiencing with the cooling system are disappointing and not what we expected of GOES-17 when we launched,” said Steve Volz, assistant administrator for NOAA’s satellite and information service. “But we are committed to getting this right, and we will figure out what happened on [GOES-17] so it doesn’t happen with our other GOES satellites.”
https://www.nextgov.com/emerging-tech/2018/07/noaas-next-gen-weather-satellite-still-malfunctioning-and-may-not-be-fixable/149995/

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