| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/21 | 6 | 390 | EKO | S18E76 | |
| 2001/09/22 | 13 | 640 | DKI | S17E56 | |
| 2001/09/23 | 20 | 710 | DKO | S18E45 | |
| 2001/09/24 | 17 | 780 | DKI | S18E32 | |
| 2001/09/25 | 23 | 790 | DKI | S19E19 | |
| 2001/09/26 | 23 | 700 | DKI | S19E06 | |
| 2001/09/27 | 21 | 670 | EKC | S19W08 | |
| 2001/09/28 | 17 | 710 | DKC | S19W21 | |
| 2001/09/29 | 15 | 640 | EKI | S18W33 | |
| 2001/09/30 | 21 | 610 | DKI | S19W48 | |
| 2001/10/01 | 19 | 620 | DKI | S18W61 | |
| 2001/10/02 | 20 | 620 | EKC | S21W73 | |
| 2001/10/03 | 6 | 220 | EKI | S21W88 |
| C | M | X |
|---|---|---|
| 8 | 3 | 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X3.72 | 2001/09/24 | 09:32 | 10:38 | 11:09 | |
| 2 | M1.83 | 2001/10/01 | 23:40 | 23:45 | 23:51 | |
| 3 | M1.62 | 2001/09/23 | 11:31 | 11:37 | 11:43 | |
| 4 | M1.16 | 2001/09/22 | 06:38 | 06:45 | 06:53 | |
| 5 | C9.34 | 2001/09/23 | 14:17 | 14:26 | 14:39 | |
| 6 | C7.17 | 2001/09/22 | 15:02 | 15:06 | 15:12 | |
| 7 | C5.6 | 2001/09/22 | 10:48 | 10:55 | 11:02 | |
| 8 | C5.26 | 2001/09/21 | 16:42 | 16:45 | 16:47 | |
| 9 | C4.97 | 2001/09/23 | 13:49 | 13:59 | 14:05 | |
| 10 | C4.83 | 2001/09/23 | 23:18 | 23:23 | 23:27 |
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| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 128 +36.2 |
| Last 30 days | 108.4 +15.8 |