Choose an event within the window of opportunity to trigger each slew, or select Optimal to change attitude whenever the slew can be perfomed most efficiently.

Member	Value	Description
eVeSlewTimingBetweenTargetsUnknown	-1	Unsupported or unknown slew option
eVeSlewTimingBetweenTargetsOptimal	0	Change attitude whenever the slew can be perfomed most efficiently
eVeSlewTimingBetweenTargetsSlewAfterTargetAcquisition	1	Start slewing toward a new target after it is in view
eVeSlewTimingBetweenTargetsSlewAfterTargetLoss	2	Start slewing away from current target after it is out-of-view
eVeSlewTimingBetweenTargetsSlewBeforeTargetAcquisition	3	Finish slewing toward a new target before it is in view
eVeSlewTimingBetweenTargetsSlewBeforeTargetLoss	4	Finish slewing away from current target before it is out-of-view