The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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April 2005

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1

Kp2+

2

Kp1+

3

B3.96
Kp2

4

B4.18
Kp6

5

C1.7
Kp7

6

C2.31
Kp4-

7

B8.09
Kp3-

8

Kp2+

9

C1.18
Kp2-

10

C1.18
Kp1

11

C1.48
Kp4

12

C2.88
Kp5

13

Kp5

14

B4.18
Kp4+

15

Kp4-

16

C1.11
Kp3

17

C6.71
Kp2+

18

B5.37
Kp3-

19

C1.15
Kp3-

20

Kp5-

21

Kp2-

22

B1.6
Kp3

23

B4.5
Kp2+

24

B8.24
Kp3

25

C1.03
Kp3+

26

C7.66
Kp1

27

B6.22
Kp1+

28

C4.32
Kp1+

29

C2.46
Kp4-

30

C1.52
Kp5
 
       

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Arkhangelsk
The solar wind speed is currently moderately high (589 km/sec.)

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Moderate M1.35 flare

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10:39 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.03)


Monday, 21 April 2025
20:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:33 UTC

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Moderate M1.99 flare

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Minor R1 radio blackout in progress (≥M1 - current: M1.93)


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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/22M1.3
Last geomagnetic storm2025/04/21Kp5+ (G1)
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Last spotless day2022/06/08
Monthly mean Sunspot Number
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April 2025120 -14.2
Last 30 days111.9 -31

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