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Geomagnetic storm on 17 Sep 2003 (G3)
Max Kp7oG3
Ap70No. 7 in 2003
Consecutive G1+ days5
Ap rank423since 1932
Kp by 3-hour slot (UTC)
5+
5+
5o
6+
7o
5+
5o
6-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 14 Sep 2003 | 2- | 4 | – |
| 15 Sep 2003 | 3o | 4 | – |
| 16 Sep 2003 | 6- | 34 | G2 |
| 17 Sep 2003 | 7o | 70 | G3 |
| 18 Sep 2003 | 6o | 50 | G2 |
| 19 Sep 2003 | 5+ | 39 | G1 |
| 20 Sep 2003 | 5- | 27 | G1 |
Highest-Ap days of 2003
204
191
150
116
109
108
70
66
61
60
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 70: No. 423 of 34,615 days since 1932 by Ap.