19991126: GOES Single Chord ADMIN NOTICE NOUS40 KWBC (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 19991126: GOES Single Chord ADMIN NOTICE NOUS40 KWBC (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Fri, 26 Nov 1999 18:41:25 -0700 (MST)

783 
NOUS40 KWBC 261443
FOS/NOAAPORT NOTICE NO. 1573          NOVEMBER 26... 1999

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 NOVEMBER 24... 1999...  TO DECEMBER 23... 1999.

LUNAR INTRUSIONS

11/30          2213 TO 0104 UTC
12/04          0015 TO 0316 UTC
12/15          0858 TO 1150 UTC
12/18          1123 TO 1415 UTC

BEVEL

NONE

SOLAR INTRUSIONS

NONE

FOLLOWING ARE TIMES OF GOES 10 SINGLE CHORD OPERATIONS
FOR THE PERIOD NOVEMBER 24... 1999 TO DECEMBER 23... 1999.

LUNAR INTRUSIONS

12/01          0224 TO 0515 UTC
12/04          0436 TO 0727 UTC
12/15          1310 TO 1605 UTC
12/18          1535 TO 1827 UTC

BEVEL

NONE

SOLAR INTRUSIONS

NONE

STEVE ARNETT
SATELLITE ANALYSIS BRANCH /SAB/
SATELLITE SERVICES DIVISION /SSD/
NOAA/NESDIS
STEVE.ARNETT/AT SYMBOL/NOAA.GOV
END
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