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Geomagnetic storm on 15 Feb 1978 (G3)
Max Kp7+G3
Ap48No. 22 in 1978
Consecutive G1+ days1
Ap rank1,028since 1932
Kp by 3-hour slot (UTC)
4o
5+
7-
7+
4-
2+
1+
1o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Feb 1978 | 4+ | 10 | – |
| 13 Feb 1978 | 3o | 8 | – |
| 14 Feb 1978 | 4+ | 11 | – |
| 15 Feb 1978 | 7+ | 48 | G3 |
| 16 Feb 1978 | 3+ | 11 | – |
| 17 Feb 1978 | 4+ | 10 | – |
| 18 Feb 1978 | 3- | 10 | – |
Highest-Ap days of 1978
124
109
96
94
89
88
85
83
82
80
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 48: No. 1,028 of 34,615 days since 1932 by Ap.