Local time LT (Figure 5)

P₂ (4-8 mHz) events occur more frequently at locations close to dawn or dusk but not significantly so. The occurrence rate for P₃ (8-16 mHz) events, which shows an opposite trend, is low at dawn and dusk. The P₅ events also occur more likely near local noon, and they have a very low occurrence rate at dusk hours. During dusk hours, only the P₂ events have a normalized occurrence rate higher than 1. These observations show the same results as in BS1.

Figure 5. Normalized occurrence rates for $P_2, \ldots , P_5$ events at different local times.