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Geomagnetic activity in March 1998
Mean Ap12.7No. 531 of 1138
G1+ days6
G3+ days1
Max Ap5310 Mar 1998
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 Mar 1998 | 7+ | 53 | G3 |
| 11 Mar 1998 | 5+ | 28 | G1 |
| 15 Mar 1998 | 5o | 20 | G1 |
| 21 Mar 1998 | 6+ | 35 | G2 |
| 25 Mar 1998 | 5- | 16 | G1 |
| 29 Mar 1998 | 5- | 20 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1997 | 7.9 | 2 | 0 |
| March 1998 | 12.7 | 6 | 1 |
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 12.7 in March 1998, No. 531 of 1138 months since 1932; 6 days reached G1 or higher.