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Topic: GOES-8 and GOES-10 Single Chord Operations Message Issued: January 15, 2003, 1530 UTC Satellites Impacted: GOES-8 and GOES-10 Products Impacted: GOES-8 and GOES-10 Imager and Sounder Data Date/Time of Initial Impact: January 21, 2003 UTC ----------------------------------------- Details: 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 January 15 to January 31, 2003. LUNAR INTRUSIONS 01/24 2101 to 2353 UTC BEVEL 01/28 0237 to 0707 UTC 01/29 0237 to 0707 UTC 01/30 0237 to 0707 UTC 01/31 0237 to 0707 UTC SOLAR INTRUSIONS None -------------------------- Following are times of GOES-10 single chord operations for the period January 15 to January 31, 2003. LUNAR INTRUSIONS 01/21 2239 to 0130 UTC BEVEL 01/28 0713 to 1153 UTC 01/29 0713 to 1153 UTC 01/30 0713 to 1153 UTC 01/31 0713 to 1153 UTC SOLAR INTRUSIONS None ------------------------------------------ Contact Information: Tom Renkevens Satellite Services Division NOAA/NESDIS/OSDPD 301-763-8081 x109 thomas.renkevens@xxxxxxxx See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages. See http://www.ssd.noaa.gov for full GOES scanning schedules. [End of message from WXSAT-L] ---------- End Forwarded Message ----------
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