Aurora & Space WeatherHome › Geomagnetic history › 1989
Geomagnetic storm on 29 Mar 1989 (G3)
Max Kp7oG3
Ap71No. 9 in 1989
Consecutive G1+ days10
Ap rank406since 1932
Kp by 3-hour slot (UTC)
6+
6o
5+
4+
5-
5+
7o
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 26 Mar 1989 | 4o | 14 | – |
| 27 Mar 1989 | 6+ | 44 | G2 |
| 28 Mar 1989 | 6- | 39 | G2 |
| 29 Mar 1989 | 7o | 71 | G3 |
| 30 Mar 1989 | 7- | 47 | G3 |
| 31 Mar 1989 | 6- | 52 | G2 |
| 1 Apr 1989 | 6- | 42 | G2 |
Highest-Ap days of 1989
246
158
146
112
109
78
77
76
71
70
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
Max Kp 7o, Ap 71: No. 406 of 34,615 days since 1932 by Ap.