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Geomagnetic activity in July 1979
Mean Ap11.5No. 624 of 1138
G1+ days8
G3+ days0
Max Ap277 Jul 1979
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Jul 1979 | 6o | 22 | G2 |
| 7 Jul 1979 | 5+ | 27 | G1 |
| 13 Jul 1979 | 5- | 16 | G1 |
| 14 Jul 1979 | 5- | 14 | G1 |
| 20 Jul 1979 | 5- | 18 | G1 |
| 26 Jul 1979 | 6- | 17 | G2 |
| 27 Jul 1979 | 5+ | 23 | G1 |
| 29 Jul 1979 | 5o | 24 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 1978 | 13.0 | 6 | 2 |
| July 1979 | 11.5 | 8 | 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 11.5 in July 1979, No. 624 of 1138 months since 1932; 8 days reached G1 or higher.