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Geomagnetic storm on 4 Jul 1978 (G4)
Max Kp8oG4
Ap80No. 10 in 1978
Consecutive G1+ days3
Ap rank306since 1932
Kp by 3-hour slot (UTC)
6o
4-
4o
4o
8-
8o
4-
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Jul 1978 | 2+ | 6 | – |
| 2 Jul 1978 | 2o | 5 | – |
| 3 Jul 1978 | 5o | 11 | G1 |
| 4 Jul 1978 | 8o | 80 | G4 |
| 5 Jul 1978 | 7o | 53 | G3 |
| 6 Jul 1978 | 4- | 13 | – |
| 7 Jul 1978 | 4- | 14 | – |
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 8o, Ap 80: No. 306 of 34,615 days since 1932 by Ap.