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Geomagnetic activity in January 2010

Mean Ap3.0No. 1136 of 1138
G1+ days0
G3+ days0
Max Ap1220 Jan 2010

Daily Ap

Ap1: 012: 13: 44: 25: 16: 167: 08: 19: 110: 311: 61112: 413: 714: 415: 416: 11617: 118: 319: 120: 1221: 52122: 323: 524: 425: 326: 32627: 128: 329: 130: 531: 431

Daily max Kp

DateMax KpApLevel
––––

Same month a year earlier

MonthMean ApG1+G3+
January 20094.300
January 20103.000
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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Mean Ap 3.0 in January 2010, No. 1136 of 1138 months since 1932; 0 days reached G1 or higher.