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Geomagnetic activity in June 1978
Mean Ap19.5No. 165 of 1138
G1+ days12
G3+ days2
Max Ap822 Jun 1978
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Jun 1978 | 7+ | 82 | G3 |
| 3 Jun 1978 | 6o | 31 | G2 |
| 4 Jun 1978 | 6+ | 26 | G2 |
| 5 Jun 1978 | 6+ | 38 | G2 |
| 10 Jun 1978 | 6o | 24 | G2 |
| 11 Jun 1978 | 5- | 17 | G1 |
| 21 Jun 1978 | 5+ | 33 | G1 |
| 24 Jun 1978 | 5- | 19 | G1 |
| 25 Jun 1978 | 5o | 24 | G1 |
| 26 Jun 1978 | 6- | 46 | G2 |
| 29 Jun 1978 | 8- | 32 | G4 |
| 30 Jun 1978 | 6o | 31 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| June 1977 | 7.5 | 0 | 0 |
| June 1978 | 19.5 | 12 | 2 |
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 19.5 in June 1978, No. 165 of 1138 months since 1932; 12 days reached G1 or higher.