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Geomagnetic storm on 23 Sep 1973 (G3)
Max Kp7oG3
Ap63No. 6 in 1973
Consecutive G1+ days5
Ap rank528since 1932
Kp by 3-hour slot (UTC)
5o
5o
4+
7o
7-
4o
6o
4o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 20 Sep 1973 | 4- | 12 | – |
| 21 Sep 1973 | 4+ | 15 | – |
| 22 Sep 1973 | 5+ | 17 | G1 |
| 23 Sep 1973 | 7o | 63 | G3 |
| 24 Sep 1973 | 5- | 28 | G1 |
| 25 Sep 1973 | 6- | 27 | G2 |
| 26 Sep 1973 | 5+ | 25 | G1 |
Highest-Ap days of 1973
91
86
82
80
80
63
60
59
58
57
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 7o, Ap 63: No. 528 of 34,615 days since 1932 by Ap.