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Geomagnetic activity in April 1953
Mean Ap15.5No. 326 of 1138
G1+ days7
G3+ days0
Max Ap3916 Apr 1953
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Apr 1953 | 6o | 34 | G2 |
| 11 Apr 1953 | 5- | 24 | G1 |
| 16 Apr 1953 | 5+ | 39 | G1 |
| 19 Apr 1953 | 5o | 22 | G1 |
| 20 Apr 1953 | 5+ | 36 | G1 |
| 21 Apr 1953 | 5o | 28 | G1 |
| 23 Apr 1953 | 5o | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1952 | 33.6 | 21 | 6 |
| April 1953 | 15.5 | 7 | 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 15.5 in April 1953, No. 326 of 1138 months since 1932; 7 days reached G1 or higher.