Aurora & Space WeatherHome › Geomagnetic history › 1978
Geomagnetic storm on 4 Jan 1978 (G3)
Max Kp7+G3
Ap89No. 5 in 1978
Consecutive G1+ days8
Ap rank226since 1932
Kp by 3-hour slot (UTC)
5+
6o
6-
6o
6+
7+
7-
6-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Jan 1978 | 3- | 7 | – |
| 2 Jan 1978 | 4- | 8 | – |
| 3 Jan 1978 | 5o | 13 | G1 |
| 4 Jan 1978 | 7+ | 89 | G3 |
| 5 Jan 1978 | 6o | 31 | G2 |
| 6 Jan 1978 | 6o | 34 | G2 |
| 7 Jan 1978 | 5- | 13 | G1 |
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 89: No. 226 of 34,615 days since 1932 by Ap.