20000726":Single Chord Ops.ADMIN NOTICE NOUS40 KWBC (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 20000726":Single Chord Ops.ADMIN NOTICE NOUS40 KWBC (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Wed, 26 Jul 2000 09:55:55 -0600

716
NOUS40 KWBC 261525
FOS/NOAAPORT NOTICE NO. 1754      JULY 26... 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 A
GOES SPACECRAFT CAUSED BY THE SUN/APOSTROPHE/S LIGHT
REFLECTING INTO THE EARTH SENSOR.

FOLLOWING ARE TIMES OF GOES-8 SINGLE CHORD OPERATIONS FOR
THE PERIOD JULY 24... 2000 TO AUGUST 22... 2000.

LUNAR INTRUSIONS

08/03          0645 TO 0917 UTC
08/17          1723 TO 2014 UTC
08/20          1939 TO 2230 UTC

BEVEL

08/07          0237 TO 0707 UTC
08/08          0237 TO 0707 UTC
08/09          0237 TO 0707 UTC
08/10          0237 TO 0707 UTC
08/11          0237 TO 0707 UTC
08/12          0237 TO 0707 UTC
08/13          0237 TO 0707 UTC
08/14          0237 TO 0707 UTC
08/15          0237 TO 0707 UTC
08/16          0237 TO 0707 UTC
08/17          0237 TO 0707 UTC
08/18          0237 TO 0707 UTC
08/19          0237 TO 0707 UTC
08/20          0237 TO 0707 UTC
08/21          0237 TO 0707 UTC

SOLAR INTRUSIONS

08/22          0237 TO 0707 UTC

FOLLOWING ARE TIMES OF GOES-10 SINGLE CHORD OPERATIONS
FOR THE PERIOD JULY 24... 2000 TO AUGUST 22... 2000.

LUNAR INTRUSIONS

07/24          0100 TO 0402 UTC
08/03          0713 TO 1322 UTC
08/17          2130 TO 0021 UTC
08/20          2347 TO 0238 UTC

BEVEL

07/31          0713 TO 1153 UTC
08/01          0713 TO 1153 UTC
08/02          0713 TO 1153 UTC
08/04          0713 TO 1153 UTC
08/05          0713 TO 1153 UTC
08/06          0713 TO 1153 UTC
08/07          0713 TO 1153 UTC
08/08          0713 TO 1153 UTC
08/09          0713 TO 1153 UTC
08/10          0713 TO 1153 UTC
08/11          0713 TO 1153 UTC
08/12          0713 TO 1153 UTC
08/13          0713 TO 1153 UTC
08/14          0713 TO 1153 UTC
08/15          0713 TO 1153 UTC
08/16          0713 TO 1153 UTC
08/17          0713 TO 1153 UTC
08/18          0713 TO 1153 UTC
08/19          0713 TO 1153 UTC
08/20          0713 TO 1153 UTC
08/21          0713 TO 1153 UTC

SOLAR INTRUSIONS

08/22          0713 TO 1153 UTC

TOM RENKEVENS
SATELLITE ANALYSIS BRANCH /SAB/
SATELLITE SERVICES DIVISION /SSD/
NOAA/NESDIS
THOMAS.RENKEVENS/AT SYMBOL/NOAA.GOV
END
NNNN


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