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.

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May 2011

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1

C6.5
Kp4

2

C1.2
Kp4+

3

C1.3
Kp4-

4

B9.3
Kp2+

5

B4.2
Kp3

6

B3.9
Kp2-

7

B3.3
Kp2

8

B4.4
Kp1

9

C5.4
Kp1+

10

Kp3+

11

B8.1
Kp3-

12

C2.0
Kp1+

13

B2.2
Kp1

14

B2.1
Kp2-

15

C4.8
Kp4-

16

B5.7
Kp4-

17

B5.3
Kp3

18

C2.0
Kp2

19

B3.5
Kp1+

20

Kp1-

21

B2.7
Kp2

22

B1.3
Kp2+

23

B1.9
Kp2-

24

B2.0
Kp2+

25

C1.4
Kp1

26

B4.4
Kp2+

27

C5.6
Kp3+

28

M1.1
G2

29

M1.4
G1

30

C7.0
Kp3-

31

C1.8
Kp4-
     

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:241
Current stretch spotless days:14

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*since 1994

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