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Geomagnetic storm on 17 Aug 1970 (G5)
Max Kp9-G5
Ap115No. 2 in 1970
Consecutive G1+ days3
Ap rank117since 1932
Kp by 3-hour slot (UTC)
5+
9-
8o
6o
5+
7-
5+
5+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 14 Aug 1970 | 2o | 4 | – |
| 15 Aug 1970 | 4- | 7 | – |
| 16 Aug 1970 | 7o | 21 | G3 |
| 17 Aug 1970 | 9- | 115 | G5 |
| 18 Aug 1970 | 6- | 36 | G2 |
| 19 Aug 1970 | 4+ | 14 | – |
| 20 Aug 1970 | 2o | 4 | – |
Highest-Ap days of 1970
149
115
92
90
87
65
58
51
47
45
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 9-, Ap 115: No. 117 of 34,615 days since 1932 by Ap.