| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/03/24 | 3 | 700 | DKO | N20E65 | |
| 2001/03/25 | 12 | 820 | EKC | N20E54 | |
| 2001/03/26 | 21 | 1040 | EKC | N20E39 | |
| 2001/03/27 | 61 | 1100 | FKC | N18E27 | |
| 2001/03/28 | 55 | 1590 | FKC | N17E11 | |
| 2001/03/29 | 51 | 2240 | FKC | N13E00 | |
| 2001/03/30 | 51 | 2440 | FKI | N17W18 | |
| 2001/03/31 | 63 | 2240 | FKC | N17W30 | |
| 2001/04/01 | 62 | 2000 | FKC | N17W43 | |
| 2001/04/02 | 53 | 1700 | FKC | N16W56 | |
| 2001/04/03 | 40 | 1810 | FKC | N16W70 | |
| 2001/04/04 | 17 | 1080 | FKC | N18W82 | |
| 2001/04/05 | 3 | 280 | DSO | N18W94 |
| C | M | X |
|---|---|---|
| 18 | 34 | 4 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X28.5 | 2001/04/02 | 21:32 | 21:51 | 22:03 | |
| 2 | X2.45 | 2001/03/29 | 09:57 | 10:15 | 10:32 | |
| 3 | X2.01 | 2001/04/02 | 10:04 | 10:14 | 10:20 | |
| 4 | X1.59 | 2001/04/02 | 10:58 | 11:36 | 12:05 | |
| 5 | M6.17 | 2001/03/28 | 11:21 | 12:40 | 13:06 | |
| 6 | M5.75 | 2001/04/01 | 19:44 | 19:49 | 19:56 | |
| 7 | M4.59 | 2001/04/02 | 00:14 | 00:28 | 00:40 | |
| 8 | M3.57 | 2001/03/25 | 04:12 | 04:24 | 04:31 | |
| 9 | M3.57 | 2001/04/03 | 12:29 | 12:34 | 12:38 | |
| 10 | M3.22 | 2001/03/30 | 05:11 | 05:15 | 05:20 |
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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 |