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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 28, 2000 to September 26, 2000. LUNAR INTRUSIONS 09/13 1518 to 1809 UTC 09/16 1735 to 2026 UTC BEVEL 08/30 0237 to 0707 UTC SOLAR INTRUSIONS 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 09/06 0237 to 0707 UTC 09/07 0237 to 0707 UTC 09/08 0237 to 0707 UTC 09/09 0237 to 0707 UTC 09/10 0237 to 0707 UTC 09/11 0237 to 0707 UTC 09/12 0237 to 0707 UTC 09/13 0237 to 0707 UTC 09/14 0237 to 0707 UTC 09/15 0237 to 0707 UTC 09/16 0237 to 0707 UTC 09/17 0237 to 0707 UTC 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 --------------------------------------- Following are times of GOES-10 single chord operations for the period August 28, 2000 to September 26, 2000. LUNAR INTRUSIONS 09/13 1929 to 2219 UTC 09/16 2146 to 0037 UTC BEVEL 08/30 0713 to 1153 UTC SOLAR INTRUSIONS 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 09/06 0713 to 1153 UTC 09/07 0713 to 1153 UTC 09/08 0713 to 1153 UTC 09/09 0713 to 1153 UTC 09/10 0713 to 1153 UTC 09/11 0713 to 1153 UTC 09/12 0713 to 1153 UTC 09/13 0713 to 1153 UTC 09/14 0713 to 1153 UTC 09/15 0713 to 1153 UTC 09/16 0713 to 1153 UTC 09/17 0713 to 1153 UTC 09/18 0713 to 1153 UTC 09/19 0713 to 1153 UTC 09/20 0713 to 1153 UTC 09/25 0713 to 1153 UTC 09/26 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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