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Sunspot region AR13878

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/10/27 4 80 DSO N17E70
2024/10/28 8 200 EAI N18E58
2024/10/29 8 290 EKI N16E51
2024/10/30 15 350 EKI N16E37
2024/10/31 11 400 EKI N27E22
2024/11/01 16 400 EKO N16E09
2024/11/02 15 400 EKO N16W02
2024/11/03 18 320 EKO N16W15
2024/11/04 15 240 EAI N17W31
2024/11/05 4 140 DSO N16W43
2024/11/06 4 150 DAO N16W60
2024/11/07 3 130 HAX N16W66
2024/11/08 2 100 HAX N17W77
2024/11/09 2 100 HAX N16W94
2024/11/10 2 100 HAX N16W0*
CMX
22121

The top 10 solar flares from sunspot region 13878

Start Maximum End
1X2.032024/10/3121:1221:2021:27
2M7.242024/10/3020:2920:5321:14
3M4.62024/10/3121:0321:1021:12
4M4.252024/10/2816:1316:2816:44
5M2.82024/10/2723:0523:2423:44
6M2.02024/11/0114:1814:3114:42
7M1.42024/10/3109:2209:3709:56
8M1.42024/11/0404:3104:3404:38
9M1.32024/10/2803:5904:0904:16
10M1.32024/11/0102:0502:1602:20
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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Oulu, Kuopio
Arkhangelsk, Norilsk, Vorkuta
The solar wind speed is currently moderately high (587.3 km/sec.)

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02:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 01:50 UTC

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Saturday, 5 April 2025
20:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:20 UTC

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20:24 UTC - Solar flare

Moderate M1.05 flare

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20:09 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.05)

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The OVATION model predicts the Hemispheric Power Index to reach 78GW at 10:32 UTC

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/05M1.0
Last geomagnetic storm2025/04/05Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025150.4 +16.2
Last 30 days131.6 -13.4

This day in history*

Solar flares
12001X8.08
22004M3.44
32023M3.01
42000M2.7
52006M2.02
DstG
12000-291G4
21977-105G3
31988-100G2
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*since 1994

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