| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/03/02 | 1 | 0 | AXX | S17E71 | |
| 1998/03/03 | 1 | 10 | AXX | S17E57 | |
| 1998/03/04 | 1 | 0 | AXX | S15E43 | |
| 1998/03/05 | 1 | 0 | AXX | S16E29 | |
| 1998/03/07 | 2 | 10 | BXO | S18E10 | |
| 1998/03/14 | 3 | 10 | BXO | S19W83 |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.6 | 1998/03/13 | 20:51 | 21:11 | 21:20 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 107.7 +21.8 |
| Last 30 days | 100 +44.8 |