Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
1997/10/16 | 2 | 60 | HSX | N18E77 | |
1997/10/17 | 2 | 60 | CSO | N16E69 | |
1997/10/18 | 3 | 80 | CSO | N17E57 | |
1997/10/19 | 3 | 60 | CSO | N17E43 | |
1997/10/20 | 1 | 30 | HSX | N17E26 | |
1997/10/21 | 1 | 40 | HSX | N16E13 | |
1997/10/22 | 4 | 40 | CRO | N16W01 | |
1997/10/23 | 3 | 10 | BXO | N16W14 |
B | C |
---|---|
1 | 1 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | C4.43 | 1997/10/21 | 17:00 | 17:54 | 18:16 | |
2 | B1.5 | 1997/10/16 | 17:18 | 17:22 | 17:37 |
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Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:50 UTC
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:20 UTC
Moderate M1.05 flare
Minor R1 radio blackout in progress (≥M1 - current: M1.05)
The OVATION model predicts the Hemispheric Power Index to reach 78GW at 10:32 UTC
Last X-flare | 2025/03/28 | X1.1 |
Last M-flare | 2025/04/05 | M1.0 |
Last geomagnetic storm | 2025/04/05 | Kp6- (G2) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
March 2025 | 134.2 -20.4 |
April 2025 | 150.4 +16.2 |
Last 30 days | 131.6 -13.4 |