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MikesNotes

v3	v4
57	57	* Sloping peaked areas (house rooftops are ideal) with the peak cutting across the line of flight ( ---> /\ ). These are used to detect pitch and yaw errors in the boresight calibration.
58	58	* An accurate ground survey (see below).
	59	* Slow overflight for maximum point density.
59	60
60	61	=== For range offset calculation ===