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Geomagnetic activity in July 2005
Mean Ap14.2No. 409 of 1138
G1+ days11
G3+ days0
Max Ap5710 Jul 2005
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 9 Jul 2005 | 5o | 24 | G1 |
| 10 Jul 2005 | 6+ | 57 | G2 |
| 11 Jul 2005 | 5o | 21 | G1 |
| 12 Jul 2005 | 6+ | 40 | G2 |
| 13 Jul 2005 | 5+ | 31 | G1 |
| 17 Jul 2005 | 5o | 22 | G1 |
| 18 Jul 2005 | 5+ | 24 | G1 |
| 20 Jul 2005 | 5- | 20 | G1 |
| 21 Jul 2005 | 5o | 21 | G1 |
| 27 Jul 2005 | 5o | 14 | G1 |
| 28 Jul 2005 | 5+ | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 2004 | 22.8 | 8 | 4 |
| July 2005 | 14.2 | 11 | 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 14.2 in July 2005, No. 409 of 1138 months since 1932; 11 days reached G1 or higher.