20000920: Single Chord Ops-ADMIN NOTICE NOUS40 KWBC (fwd)

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 20000920: Single Chord Ops-ADMIN NOTICE NOUS40 KWBC (fwd)
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Wed, 20 Sep 2000 08:49:15 -0600

791
NOUS40 KWBC 201435
FOS/NOAAPORT NOTICE NO. 1793     AUGUST 20... 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 SEPTEMBER 18... 2000 TO
OCTOBER 17... 2000.

LUNAR INTRUSIONS

10/11          1359 TO 1650 UTC
10/13          1531 TO 1823 UTC

BEVEL

NONE

SOLAR INTRUSIONS

09/18          0237 TO 0707 UTC
09/19          0237 TO 0707 UTC
09/20          0237 TO 0707 UTC
09/24          0237 TO 0707 UTC
09/25          0237 TO 0707 UTC
09/26          0237 TO 0707 UTC
09/27          0237 TO 0707 UTC
09/28          0237 TO 0707 UTC
09/29          0237 TO 0707 UTC
09/30          0237 TO 0707 UTC
10/01          0237 TO 0707 UTC
10/02          0237 TO 0707 UTC
10/03          0237 TO 0707 UTC
10/04          0237 TO 0707 UTC
10/05          0237 TO 0707 UTC
10/06          0237 TO 0707 UTC
10/07          0237 TO 0707 UTC
10/08          0237 TO 0707 UTC
10/09          0237 TO 0707 UTC
10/10          0237 TO 0707 UTC
10/11          0237 TO 0707 UTC
10/12          0237 TO 0707 UTC
10/13          0237 TO 0707 UTC
10/14          0237 TO 0707 UTC
10/15          0237 TO 0707 UTC
10/16          0237 TO 0707 UTC
10/17          0237 TO 0707 UTC

FOLLOWING ARE TIMES OF GOES-10 SINGLE CHORD OPERATIONS FOR THE
PERIOD SEPTEMBER 18... 2000 TO
OCTOBER 17... 2000.

LUNAR INTRUSIONS

10/10          1720 TO 2011 UTC
10/13          1938 TO 2230 UTC

BEVEL

09/29          0713 TO 1153 UTC

SOLAR INTRUSIONS

09/18          0713 TO 1153 UTC
09/19          0713 TO 1153 UTC
09/20          0713 TO 1552 UTC SEE NOTE BELOW
09/25          0713 TO 1153 UTC
09/26          0713 TO 1153 UTC
09/27          0713 TO 1153 UTC
09/28          0713 TO 1153 UTC
09/29          0713 TO 1153 UTC
09/30          0713 TO 1153 UTC
10/01          0713 TO 1153 UTC
10/02          0713 TO 1153 UTC
10/03          0713 TO 1153 UTC
10/04          0713 TO 1153 UTC
10/05          0713 TO 1153 UTC
10/06          0713 TO 1153 UTC
10/07          0713 TO 1153 UTC
10/08          0713 TO 1153 UTC
10/09          0713 TO 1153 UTC
10/10          0713 TO 1153 UTC
10/11          0713 TO 1153 UTC
10/12          0713 TO 1153 UTC
10/13          0713 TO 1153 UTC
10/14          0713 TO 1153 UTC
10/15          0713 TO 1153 UTC
10/16          0713 TO 1153 UTC
10/17          0713 TO 1153 UTC

NOTE   THE SOLAR SOUTH SCAN INHIBIT EXIT TIME ON 9/20 HAS BEEN
       CHANGED TO 1552UTC TO SUPPORT SPECIAL IMAGE REGISTRATION
       TESTING.

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