Home › Geomagnetic history › 1989
Geomagnetic storm on 29 Aug 1989 (G3)
Max Kp7+G3
Ap58No. 12 in 1989
Consecutive G1+ days3
Ap rank670since 1932
Kp by 3-hour slot (UTC)
7o
7+
6-
4o
4-
4o
4-
2+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 26 Aug 1989 | 3- | 6 | – |
| 27 Aug 1989 | 6- | 26 | G2 |
| 28 Aug 1989 | 7- | 22 | G3 |
| 29 Aug 1989 | 7+ | 58 | G3 |
| 30 Aug 1989 | 4+ | 17 | – |
| 31 Aug 1989 | 3- | 6 | – |
| 1 Sep 1989 | 3- | 8 | – |
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 7+, Ap 58: No. 670 of 34,615 days since 1932 by Ap.