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NOUS40 KWBC 081533
FOS/NOAAPORT NOTICE NO. 1857 JANUARY 8... 2001
ATTENTION FAMILY OF SERVICES SUBSCRIBERS/NOAAPORT USERS
SUBJECT GOES 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 JANUARY 04... 2001 TO FEBRUARY 02... 2001.
LUNAR INTRUSIONS
01/04 1033 TO 1324 UTC
01/13 1919 TO 2209 UTC
01/16 2142 TO 0045 UTC
01/31 0831 TO 1122 UTC
BEVEL
01/28 0237 TO 0707 UTC
01/29 0237 TO 0707 UTC
01/30 0237 TO 0707 UTC
01/31 0237 TO 0707 UTC
02/01 0237 TO 0707 UTC
02/02 0237 TO 0707 UTC
SOLAR INTRUSIONS
NONE
FOLLOWING ARE TIMES OF GOES-10 SINGLE CHORD OPERATIONS FOR THE
PERIOD JANUARY 04... 2001 TO FEBRUARY 02... 2001.
LUNAR INTRUSIONS
01/04 1441 TO 1733 UTC
01/13 2324 TO 0217 UTC
01/28 0713 TO 1317 UTC
01/31 1236 TO 1527 UTC
BEVEL
01/27 0713 TO 1153 UTC
01/29 0713 TO 1153 UTC
01/30 0713 TO 1153 UTC
01/31 0713 TO 1153 UTC
02/01 0713 TO 1153 UTC
02/02 0713 TO 1153 UTC
SOLAR INTRUSIONS
NONE
TOM RENKEVENS
SATELLITE ANALYSIS BRANCH /SAB/
SATELLITE SERVICES DIVISION /SSD/
NOAA/NESDIS
THOMAS.RENKEVENS/AT SYMBOL/NOAA.GOV
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