| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/01/09 | 12 | 110 | DAI | N12E58 | |
| 2001/01/10 | 15 | 90 | DAI | N11E43 | |
| 2001/01/11 | 18 | 170 | EAI | N11E31 | |
| 2001/01/12 | 34 | 220 | EAI | N12E14 | |
| 2001/01/13 | 44 | 330 | EAI | N12E04 | |
| 2001/01/14 | 42 | 420 | FAI | N13W13 | |
| 2001/01/15 | 60 | 510 | FAC | N12W25 | |
| 2001/01/16 | 43 | 460 | FAI | N12W38 | |
| 2001/01/17 | 28 | 330 | FKI | N11W53 | |
| 2001/01/18 | 17 | 130 | FAI | N13W66 | |
| 2001/01/19 | 1 | 80 | HSX | N13W87 |
| C | M |
|---|---|
| 11 | 3 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.66 | 2001/01/09 | 06:45 | 06:50 | 06:52 | |
| 2 | M1.35 | 2001/01/15 | 15:56 | 16:03 | 16:07 | |
| 3 | M1.17 | 2001/01/14 | 02:46 | 02:51 | 02:54 | |
| 4 | C8.51 | 2001/01/10 | 00:23 | 01:03 | 01:40 | |
| 5 | C7 | 2001/01/15 | 18:42 | 18:47 | 19:08 | |
| 6 | C4.89 | 2001/01/13 | 19:40 | 19:46 | 19:53 | |
| 7 | C3.31 | 2001/01/17 | 20:40 | 20:46 | 20:52 | |
| 8 | C3.14 | 2001/01/16 | 06:05 | 06:11 | 06:19 | |
| 9 | C2.77 | 2001/01/15 | 00:57 | 01:08 | 01:45 | |
| 10 | C2.63 | 2001/01/10 | 14:16 | 14:20 | 14:33 |
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| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.2 -4.8 |
| Last 30 days | 119.5 +1.5 |