Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
2023/09/20 | 5 | 50 | CSI | S11E52 | |
2023/09/21 | 7 | 30 | CSI | S11E39 | |
2023/09/22 | 1 | 30 | HSX | S25E36 | |
2023/09/23 | 1 | 30 | HSX | S09E11 | |
2023/09/24 | 1 | 20 | HRX | S08W00 | |
2023/09/25 | 1 | 20 | HAX | S09W14 | |
2023/09/26 | 1 | 20 | HRX | S09W27 | |
2023/09/27 | 1 | 5 | AXX | S09W42 |
C |
---|
3 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | C4.7 | 2023/09/20 | 21:27 | 21:38 | 21:48 | |
2 | C4.2 | 2023/09/20 | 17:34 | 18:02 | 18:24 | |
3 | C2.2 | 2023/09/21 | 01:32 | 01:43 | 02:06 |
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Active geomagnetic conditions (Kp4) Threshold Reached: 03:57 UTC
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 03:23 UTC
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 21:36 UTC
Severe G4 geomagnetic storm (Kp8) Threshold Reached: 20:55 UTC
Strong G3 geomagnetic storm (Kp7) Threshold Reached: 19:25 UTC
Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/04/15 | M1.2 |
Last geomagnetic storm | 2025/04/16 | Kp8- (G4) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
March 2025 | 134.2 -20.4 |
April 2025 | 120.5 -13.7 |
Last 30 days | 118.3 -22.1 |