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NOUS40 KWBC 111658 FOS/NOAAPORT NOTICE NO. 1835 DECEMBER 11... 2000 ATTENTION FAMILY OF SERVICES SUBSCRIBERS/NOAAPORT USERS SUBJECT SINGLE CHORD OPERATIONS GOES SINGLE CHORD OPERATIONS... MADE NECESSARY BY LUNAR AND SOLAR INTRUSIONS AT THE EDGE OF THE EARTH DISK... IMPACT NAVIGATION AND REGISTRATION FOR SHORT PERIODS. USERS OF GOES GVAR DATA WILL SEE VARIABLE ERRORS DURING PERIODS OF SINGLE CHORD OPERATIONS AS NOTED BELOW. SINGLE CHORD OPERATIONS FOR THE BEVEL EFFECT ARE LISTED WHEN APPLICABLE. BEVEL EFFECT OPERATION IS INTENDED TO AVOID A SEASONAL SPACECRAFT POINTING PROBLEM WITH ALL GOES SPACECRAFT CAUSED BY THE SUN S LIGHT REFLECTING INTO THE EARTH SENSOR. FOLLOWING ARE TIMES OF GOES-8 SINGLE CHORD OPERATIONS FOR THE PERIOD DECEMBER 05... 2000 TO JANUARY 03... 2001. LUNAR INTRUSIONS 12/07 1155 TO 1447 UTC 12/17 2123 TO 0015 UTC 01/01 0822 TO 1112 UTC BEVEL NONE SOLAR INTRUSIONS NONE FOLLOWING ARE TIMES OF GOES-10 SINGLE CHORD OPERATIONS FOR THE PERIOD DECEMBER 05... 2000 TO JANUARY 03... 2001. LUNAR INTRUSIONS 12/07 1606 TO 1848 UTC 12/18 0134 TO 0425 UTC 01/01 1229 TO 1519 UTC BEVEL NONE SOLAR INTRUSIONS NONE TOM RENKEVENS SATELLITE ANALYSIS BRANCH /SAB/ SATELLITE SERVICES DIVISION /SSD/ NOAA/NESDIS THOMAS.RENKEVENS/AT SYMBOL/NOAA.GOV THIS INFORMATION IS ALSO POSTED ON THE NWS SYSTEMS OPERATIONS CENTER CHANGE NOTICES WEB PAGE. THE URL IS LISTED BELOW. HTTP/COLON///WWW.NWS.NOAA.GOV/OSO/NOTICES/NOTICES.SHTML /LOWER CASE/ ---------- End Forwarded Message ----------
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