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Geomagnetic activity in July 2002
Mean Ap10.7No. 688 of 1138
G1+ days4
G3+ days0
Max Ap226 Jul 2002
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Jul 2002 | 5- | 19 | G1 |
| 17 Jul 2002 | 5o | 20 | G1 |
| 21 Jul 2002 | 5- | 20 | G1 |
| 23 Jul 2002 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 2001 | 9.0 | 3 | 0 |
| July 2002 | 10.7 | 4 | 0 |
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
Mean Ap 10.7 in July 2002, No. 688 of 1138 months since 1932; 4 days reached G1 or higher.