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Geomagnetic storm on 20 Apr 1985 (G3)
Max Kp7-G3
Ap53No. 6 in 1985
Consecutive G1+ days3
Ap rank802since 1932
Kp by 3-hour slot (UTC)
5o
6-
6+
3+
2o
3o
6-
7-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 17 Apr 1985 | 2+ | 5 | – |
| 18 Apr 1985 | 3- | 4 | – |
| 19 Apr 1985 | 5o | 21 | G1 |
| 20 Apr 1985 | 7- | 53 | G3 |
| 21 Apr 1985 | 8+ | 103 | G4 |
| 22 Apr 1985 | 4- | 11 | – |
| 23 Apr 1985 | 4- | 12 | – |
Highest-Ap days of 1985
103
66
61
60
58
53
52
48
46
46
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 53: No. 802 of 34,615 days since 1932 by Ap.