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Geomagnetic activity in March 1989

Mean Ap41.4No. 4 of 1138
G1+ days22
G3+ days7
Max Ap24613 Mar 1989

Daily Ap

Ap1: 1212: 253: 374: 135: 306: 2467: 188: 249: 3110: 1911: 171112: 2313: 24614: 15815: 4916: 501617: 3418: 1519: 5520: 1421: 222122: 3923: 3624: 1625: 1026: 142627: 4428: 3929: 7130: 4731: 5231

Daily max Kp

Same month a year earlier

MonthMean ApG1+G3+
March 198814.271
March 198941.4227
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 41.4 in March 1989, No. 4 of 1138 months since 1932; 22 days reached G1 or higher.