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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 August 07, 2000 to September 05, 2000. LUNAR INTRUSIONS 08/17 1723 to 2014 UTC 08/20 1939 to 2230 UTC BEVEL 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 08/30 0237 to 0707 UTC SOLAR INTRUSIONS 08/22 0237 to 0707 UTC 08/23 0237 to 0707 UTC 08/24 0237 to 0707 UTC 08/25 0237 to 0707 UTC 08/26 0237 to 0707 UTC 08/27 0237 to 0707 UTC 08/28 0237 to 0707 UTC 08/29 0237 to 0707 UTC 08/30 0237 to 0707 UTC 08/31 0237 to 0707 UTC 09/01 0237 to 0707 UTC 09/02 0237 to 0707 UTC 09/03 0237 to 0707 UTC 09/04 0237 to 0707 UTC 09/05 0237 to 0707 UTC --------------------------------------- Following are times of GOES-10 single chord operations for the period August 07, 2000 to September 05, 2000. LUNAR INTRUSIONS 08/17 2130 to 0021 UTC 08/20 2347 to 0238 UTC BEVEL 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 08/30 0713 to 1153 UTC SOLAR INTRUSIONS 08/22 0713 to 1153 UTC 08/23 0713 to 1153 UTC 08/24 0713 to 1153 UTC 08/25 0713 to 1153 UTC 08/26 0713 to 1153 UTC 08/27 0713 to 1153 UTC 08/28 0713 to 1153 UTC 08/29 0713 to 1153 UTC 08/30 0713 to 1153 UTC 08/31 0713 to 1153 UTC 09/01 0713 to 1153 UTC 09/02 0713 to 1153 UTC 09/03 0713 to 1153 UTC 09/04 0713 to 1153 UTC 09/05 0713 to 1153 UTC ------------------------------------------ Tom Renkevens Satellite Analysis Branch (SAB) Satellite Services Division (SSD) NOAA/NESDIS thomas.renkevens@xxxxxxxx [End of message from WXSAT-L] ---------- End Forwarded Message ----------
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