Aurora & Space WeatherHome › Geomagnetic history › 1989
Geomagnetic activity in February 1989
Mean Ap15.5No. 325 of 1138
G1+ days6
G3+ days0
Max Ap443 Feb 1989
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Feb 1989 | 5+ | 29 | G1 |
| 2 Feb 1989 | 5+ | 21 | G1 |
| 3 Feb 1989 | 6- | 44 | G2 |
| 4 Feb 1989 | 5- | 24 | G1 |
| 6 Feb 1989 | 5- | 23 | G1 |
| 16 Feb 1989 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1988 | 14.8 | 6 | 1 |
| February 1989 | 15.5 | 6 | 0 |
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.
About this page
Mean Ap 15.5 in February 1989, No. 325 of 1138 months since 1932; 6 days reached G1 or higher.