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Geomagnetic storm on 29 Jul 1990 (G3)
Max Kp7oG3
Ap75No. 8 in 1990
Consecutive G1+ days2
Ap rank354since 1932
Kp by 3-hour slot (UTC)
7o
7o
6+
6-
6o
5-
4o
4+
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 26 Jul 1990 | 5+ | 14 | G1 |
| 27 Jul 1990 | 3o | 9 | – |
| 28 Jul 1990 | 8- | 102 | G4 |
| 29 Jul 1990 | 7o | 75 | G3 |
| 30 Jul 1990 | 4o | 12 | – |
| 31 Jul 1990 | 3o | 6 | – |
| 1 Aug 1990 | 5o | 26 | G1 |
Highest-Ap days of 1990
124
102
99
89
79
77
76
75
70
69
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 75: No. 354 of 34,615 days since 1932 by Ap.