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Geomagnetic activity in February 1984

Mean Ap16.7No. 264 of 1138
G1+ days10
G3+ days0
Max Ap544 Feb 1984

Daily Ap

Ap1: 1612: 203: 194: 545: 146: 867: 98: 79: 910: 2111: 211112: 1213: 3614: 4315: 1916: 71617: 918: 1719: 720: 1321: 142122: 823: 1524: 1025: 726: 162627: 3428: 829: 10

Daily max Kp

DateMax KpApLevel
2 Feb 19846-20G2
3 Feb 19845+19G1
4 Feb 19846o54G2
10 Feb 19845o21G1
11 Feb 19846o21G2
12 Feb 19845-12G1
13 Feb 19845+36G1
14 Feb 19846o43G2
15 Feb 19846-19G2
27 Feb 19846o34G2

Same month a year earlier

MonthMean ApG1+G3+
February 198326.6152
February 198416.7100
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 16.7 in February 1984, No. 264 of 1138 months since 1932; 10 days reached G1 or higher.