OWOs, on the other hand, show a broader range of drifts and little or no tendency to bimodality.
But, notably, LRS1 is systematically centred further south than the MB-WOs, which in turn lie further south than the OWOs.
where DL2 = drift in L2 in degrees per 30 days, B" = zenographic latitude, and Bo=40.0 (LRS-1), 40.3 (MB-WOs), 40.6 (OWOs), 40.9 (minor white ovals lasting <1 year).
(Another example of this was the small LRS in 2006, not included in the data sets presented, which oscillated along a trend line between those of the MB-WOs and the OWOs.)