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Geomagnetic storm on 9 Jun 1991 (G3)
Max Kp7-G3
Ap58No. 29 in 1991
Consecutive G1+ days10
Ap rank672since 1932
Kp by 3-hour slot (UTC)
7-
5+
4-
4+
4+
7-
6o
4-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Jun 1991 | 7- | 49 | G3 |
| 7 Jun 1991 | 5+ | 27 | G1 |
| 8 Jun 1991 | 5+ | 26 | G1 |
| 9 Jun 1991 | 7- | 58 | G3 |
| 10 Jun 1991 | 8- | 119 | G4 |
| 11 Jun 1991 | 7+ | 88 | G3 |
| 12 Jun 1991 | 7- | 66 | G3 |
Highest-Ap days of 1991
196
161
134
130
128
120
119
119
117
114
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. 672 of 34,615 days since 1932 by Ap.