19990416: GOES Single Chord

• To: nws-changes@xxxxxxxxxxxxxxxx
• Subject: 19990416: GOES Single Chord
• From: Linda Miller <lmiller@xxxxxxxxxxxxxxxx>
• Date: Fri, 16 Apr 1999 07:20:30 -0600 (MDT)

     NOUS40KWBC 151403
     FOS/NOAAPORT NOTICE NO. 1462     APRIL 15... 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 APRIL 15... 1999 TO MAY 11... 1999.
     
     LUNAR INTRUSIONS
     
     04/16          0237 TO 0707 UTC
     04/26          1219 TO 1528 UTC
     04/29          1447 TO 1737 UTC
     05/10          2328 TO 0220 UTC
     
     BEVEL
     
     04/22          0237 TO 0707 UTC
     04/23          0237 TO 0707 UTC
     04/24          0237 TO 0707 UTC
     04/25          0237 TO 0707 UTC
     04/26          0237 TO 0707 UTC
   04/27          0237 TO 0707 UTC
     04/28          0237 TO 0707 UTC
     04/29          0237 TO 0707 UTC
     04/30          0237 TO 0707 UTC
     05/01          0237 TO 0707 UTC
     05/02          0237 TO 0707 UTC
     05/03          0237 TO 0707 UTC
     05/04          0237 TO 0707 UTC
     05/05          0237 TO 0707 UTC
     
     SOLAR INTRUSIONS
     
     04/15          0237 TO 0707 UTC
     04/16          0237 TO 0707 UTC
     04/17          0237 TO 0707 UTC
     04/18          0237 TO 0707 UTC
     04/19          0237 TO 0707 UTC
     04/20          0237 TO 0707 UTC
     04/21          0237 TO 0707 UTC
     
     FOLLOWING ARE TIMES OF GOES-10 SINGLE CHORD OPERATIONS
     FOR THE PERIOD APRIL 15... 1999 TO MAY 11... 1999.
     
     LUNAR INTRUSIONS
     
     04/16          0713 TO 1153 UTC
     04/25          1535 TO 1849 UTC
     04/26          1643 TO 1934 UTC
     04/29          1853 TO 2144 UTC
     05/05          0332 TO 0631 UTC
     
     BEVEL
     
     04/21          0713 TO 1153 UTC
     04/22          0713 TO 1153 UTC
     04/23          0713 TO 1153 UTC
     04/24          0713 TO 1153 UTC
   04/25          0713 TO 1153 UTC
     04/26          0713 TO 1153 UTC
     04/27          0713 TO 1153 UTC
     04/28          0713 TO 1153 UTC
     04/29          0713 TO 1153 UTC
     04/30          0713 TO 1153 UTC
     05/01          0713 TO 1153 UTC
     05/02          0713 TO 1153 UTC
     05/03          0713 TO 1153 UTC
     05/04          0713 TO 1153 UTC
     05/05          0713 TO 1153 UTC
     05/06          0713 TO 1153 UTC
     05/07          0713 TO 1153 UTC
     05/08          0713 TO 1153 UTC
     05/09          0713 TO 1153 UTC
     
     SOLAR INTRUSIONS
     
     04/15          0713 TO 1153 UTC
     04/16          0713 TO 1153 UTC
     04/17          0713 TO 1153 UTC
     04/18          0713 TO 1153 UTC
     04/19          0713 TO 1153 UTC
     04/20          0713 TO 1153 UTC
     
     STEVE ARNETT
     SATELLITE ANALYSIS BRANCH
     SATELLITE SERVICES DIVISION
     NOAA/NESDIS
     STEVE.ARNETT/AT SYMBOL/NOAA.GOV
     END
     NNNN