Topic: GOES-15 (GOES-West Backup) Yaw Flip Maneuver is scheduled for September 24, 2019

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Date/Time Issued: September 24, 2019M-B 1235 UTC

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Product(s) or Data Impacted: GOES-15 (GOES-West Backup) Imager and Sounder Data.

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Date/Time of Initial Impact:M-B September 24, 2019M-B 2000 UTC

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Date/Time of Expected End: September 26, 2019 0044 UTC

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Length of Outage: 1 hour for maneuver (2000 UTC - 2059 UTC); 27 hours and 15 minutes for recovery period (September 24, 2019 2100 UTC - September 26, 2019 0044 UTC).

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Details/Specifics of Change:

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GOES-15 (GOES-West Backup) will be performing a Yaw Flip Maneuver for one hour on Tuesday, September 24, 2019 from 2000 UTC through 2059 UTC.M-B There is no back-up date for this maneuver.M-B It will need to be conducted during a critical weather day.M-B A recovery period will follow immediately and last until September 26, 2019 at 0044 UTC.M-B During the recovery period, routine imager and sounder scans will be performed; however, the navigation may still be out of specifications until the end of the recovery period. No GOES-15 (GOES-West Backup) RSO requests will be approved during the maneuver/maneuver recovery period.

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If NWS Regions have any operational concerns, please contact the NCEP SDM (301) 683-1500 at least 6 hours prior to the maneuver time. There is no backup date for the Yaw Flip.

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On September 25, 2019 0800-1100 UTC, the following images and soundings will be shortened or replaced due to navigation constraints during eclipse.

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Images:

0815 UTC PACUS replaced with 0819 UTC SUBCONUS

0845 UTC PACUS replaced with 0849 UTC SUBCONUS

0900 UTC Full Disk replaced with 0900 UTC Full Disk short

0945 UTC PACUS replaced with 0949 UTC SUBCONUS

1015 UTC PACUS replaced with 1019 UTC SUBCONUS

1045 UTC PACUS replaced with 1049 UTC SUBCONUS

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Soundings:

0801 UTC Limited CONUS replaced with 0801 UTC short CONUS

0924 UTC N. Pacific replaced with 0924 UTC Limited N. Pacific

1024 UTC N. Pacific replaced with 1024 UTC Limited N. Pacific

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Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

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Web Site(s) for applicable information:

See https://www.ospo.noaa.gov/Operations/messages.html for this and other satellite related messages.

See http://www.ospo.noaa.gov/Operations/GOES/schedules.html for full GOES scanning schedules and scan sectors.

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