| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/10/17 | 2 | 130 | HSX | S16E67 | |
| 2001/10/18 | 4 | 340 | FAO | S18E59 | |
| 2001/10/19 | 12 | 370 | FKO | S18E45 | |
| 2001/10/20 | 20 | 530 | FKO | S18E32 | |
| 2001/10/21 | 17 | 470 | FAO | S19E19 | |
| 2001/10/22 | 27 | 390 | FAO | S18E06 | |
| 2001/10/23 | 20 | 470 | FKO | S18W07 | |
| 2001/10/24 | 22 | 450 | FKI | S18W20 | |
| 2001/10/25 | 28 | 370 | FAI | S18W34 | |
| 2001/10/26 | 21 | 280 | FAI | S19W47 | |
| 2001/10/27 | 10 | 180 | FAO | S18W60 | |
| 2001/10/28 | 6 | 190 | FAO | S17W74 | |
| 2001/10/29 | 5 | 100 | CAO | S18W80 |
| C |
|---|
| 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C5.96 | 2001/10/20 | 07:00 | 07:09 | 07:25 | |
| 2 | C4.29 | 2001/10/20 | 21:44 | 21:47 | 21:54 | |
| 3 | C3.7 | 2001/10/21 | 13:11 | 13:26 | 13:31 |
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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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |