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Geomagnetic activity in March 1957
Mean Ap26.0No. 50 of 1138
G1+ days12
G3+ days5
Max Ap1322 Mar 1957
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1957 | 5- | 16 | G1 |
| 2 Mar 1957 | 8+ | 132 | G4 |
| 3 Mar 1957 | 5+ | 32 | G1 |
| 10 Mar 1957 | 7o | 73 | G3 |
| 16 Mar 1957 | 6o | 37 | G2 |
| 21 Mar 1957 | 5o | 20 | G1 |
| 22 Mar 1957 | 5- | 23 | G1 |
| 25 Mar 1957 | 6o | 31 | G2 |
| 27 Mar 1957 | 7o | 44 | G3 |
| 28 Mar 1957 | 7o | 58 | G3 |
| 29 Mar 1957 | 8- | 77 | G4 |
| 30 Mar 1957 | 6- | 21 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1956 | 20.2 | 13 | 2 |
| March 1957 | 26.0 | 12 | 5 |
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 26.0 in March 1957, No. 50 of 1138 months since 1932; 12 days reached G1 or higher.