| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/10/16 | 1 | 40 | HSX | N20E73 | |
| 1998/10/17 | 1 | 30 | HSX | N18E58 | |
| 1998/10/18 | 2 | 30 | HRX | N20E46 | |
| 1998/10/19 | 1 | 10 | AXX | N19E33 | |
| 1998/10/20 | 1 | 10 | HRX | N20E20 | |
| 1998/10/21 | 3 | 10 | BXO | N18E06 | |
| 1998/10/22 | 5 | 10 | BXO | N18W08 |
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| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | 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 | 122.8 +36.9 |
| Last 30 days | 100.8 +44.4 |