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
December 19, 2000 to January 17, 2001.
LUNAR INTRUSIONS
01/01 0822 to 1112 UTC
01/04 1033 to 1324 UTC
01/13 1919 to 2209 UTC
01/16 2142 to 0045 UTC
BEVEL
NONE
SOLAR INTRUSIONS
NONE
---------------------------------------
Following are times of GOES-10 single chord operations for the period
December 19, 2000 to January 17, 2001.
LUNAR INTRUSIONS
01/01 1229 to 1519 UTC
01/04 1441 to 1733 UTC
01/13 2324 to 0217 UTC
BEVEL
NONE
SOLAR INTRUSIONS
NONE
------------------------------------------
Tom Renkevens
Satellite Analysis Branch (SAB)
Satellite Services Division (SSD)
NOAA/NESDIS
thomas.renkevens@xxxxxxxx
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