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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April 2013

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1

B7.4
Kp2

2

B9.6
Kp2

3

C2.7
Kp1+

4

C1.2
Kp2

5

M2.2
Kp1+

6

C1.7
Kp2-

7

C3.1
Kp2

8

C1.6
Kp1-

9

C2.9
Kp1+

10

C4.2
Kp2+

11

M6.5
Kp2

12

M3.3
Kp2

13

C1.9
Kp3

14

B7.0
Kp3+

15

C1.2
Kp3

16

C3.5
Kp2

17

C1.3
Kp1-

18

C6.5
Kp1

19

C1.1
Kp0+

20

C1.5
Kp2

21

C4.5
Kp1+

22

M1.0
Kp2-

23

C8.2
Kp3-

24

C2.5
G1

25

C5.8
Kp3

26

C7.0
G1

27

C5.2
Kp2+

28

C4.4
Kp2+

29

C5.9
Kp3-

30

C3.6
Kp3-
     
       

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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 2019:247
Current stretch spotless days:20

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