| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/03/28 | 3 | 70 | CSO | S06E66 | |
| 2001/03/29 | 1 | 70 | HAX | S05E50 | |
| 2001/03/30 | 1 | 70 | HAX | S05E36 | |
| 2001/03/31 | 7 | 80 | CAO | S05E23 | |
| 2001/04/01 | 14 | 90 | DAO | S06E09 | |
| 2001/04/02 | 22 | 80 | DAI | S06W04 | |
| 2001/04/03 | 12 | 50 | DSO | S05W17 | |
| 2001/04/04 | 9 | 30 | CSO | S05W31 | |
| 2001/04/05 | 2 | 0 | AXX | S03W46 |
| C |
|---|
| 2 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.41 | 2001/03/30 | 17:14 | 17:18 | 17:22 | |
| 2 | C7.05 | 2001/03/31 | 07:01 | 07:09 | 07:27 |
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| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 175.4 +83.6 |
| Last 30 days | 107.3 +14.6 |