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Geomagnetic activity in October 1942

Mean Ap22.2No. 104 of 1138
G1+ days16
G3+ days3
Max Ap8029 Oct 1942

Daily Ap

Ap1: 312: 483: 464: 315: 206: 667: 158: 89: 710: 611: 101112: 3613: 3214: 3415: 2616: 221617: 1418: 1919: 3320: 1921: 72122: 423: 524: 325: 1226: 82627: 828: 5629: 8030: 3931: 3031

Daily max Kp

Same month a year earlier

MonthMean ApG1+G3+
October 194111.342
October 194222.2163
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.

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About this page

Mean Ap 22.2 in October 1942, No. 104 of 1138 months since 1932; 16 days reached G1 or higher.