UNCLASSIFIED
UNCLASSIFIED
Bevel is another Earth Sensor stray light phenomenon that cause the same pointing error signature as Batwing, but is an order of magnitude smaller. It is handled by Single Chord operations.
Boom Snap is another SMC operation that occurs when the Sun crosses the equatorial plane and heading south. Once a day the Magnetometer Boom aligns itself in such a way that it casts a shadow across the Solar Sail Boom. This causes a snapping motion in the spacecraft. NOAA compensates for this with a Boom Snap SMC coefficient load on a daily basis.
GOES Terminology