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 2012

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1

Kp2

2

B7.9
Kp3+

3

B4.3
Kp2

4

C1.2
Kp3

5

C3.1
Kp4

6

B5.7
Kp2

7

C2.4
Kp3+

8

B7.2
Kp2+

9

C3.9
Kp2

10

B6.5
Kp3+

11

B2.7
Kp2

12

B5.1
G1

13

B5.6
G1

14

B9.8
Kp4-

15

C2.7
Kp2

16

M1.7
Kp2-

17

C1.1
Kp3+

18

C8.9
Kp3+

19

C7.0
Kp3-

20

C3.3
Kp3+

21

C2.4
Kp4-

22

C2.4
Kp3+

23

C2.0
G2

24

C3.7
G3

25

C3.7
G1

26

C1.8
G1

27

M1.0
Kp3

28

C1.7
Kp2+

29

C1.7
Kp2+

30

C6.0
Kp1-
      

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/04/20Kp5 (G1)
Number of spotless days in 2020:112
Current stretch spotless days:20

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*since 1994

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