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Geomagnetic activity in January 1989
Mean Ap18.7No. 188 of 1138
G1+ days11
G3+ days1
Max Ap4520 Jan 1989
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 5 Jan 1989 | 6- | 33 | G2 |
| 11 Jan 1989 | 6+ | 37 | G2 |
| 12 Jan 1989 | 6o | 20 | G2 |
| 14 Jan 1989 | 5- | 14 | G1 |
| 15 Jan 1989 | 6- | 38 | G2 |
| 16 Jan 1989 | 6- | 43 | G2 |
| 17 Jan 1989 | 5o | 28 | G1 |
| 20 Jan 1989 | 7- | 45 | G3 |
| 21 Jan 1989 | 5- | 28 | G1 |
| 22 Jan 1989 | 5+ | 30 | G1 |
| 31 Jan 1989 | 6o | 32 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| January 1988 | 13.4 | 8 | 2 |
| January 1989 | 18.7 | 11 | 1 |
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.
← December 1988February 1989 →
About this page
Mean Ap 18.7 in January 1989, No. 188 of 1138 months since 1932; 11 days reached G1 or higher.