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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October 2011

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Sun.
     

1

M1.2
G1

2

M3.9
Kp4-

3

C7.6
Kp2

4

C7.3
Kp2+

5

C9.2
Kp4+

6

C1.9
Kp3-

7

C2.6
Kp2

8

C1.1
Kp4-

9

C1.7
Kp3+

10

C4.5
Kp2-

11

C1.1
Kp2-

12

C5.3
Kp2+

13

C2.2
Kp2+

14

C1.3
Kp1-

15

C5.0
Kp3+

16

C6.3
Kp3-

17

C2.1
Kp3-

18

C2.0
Kp2-

19

C5.5
Kp2+

20

M1.6
Kp2+

21

M1.3
Kp2+

22

M1.3
Kp1-

23

C2.5
Kp1

24

G3

25

C1.7
G3

26

C1.2
Kp1+

27

C2.6
Kp2

28

C1.7
Kp0+

29

C3.0
Kp0+

30

C2.4
Kp3

31

M1.4
Kp4-
      

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:75
Current stretch spotless days:4

This day in history*

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12000M2.0
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32015M1.4
41999M1.1
52000C8.2
ApG
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2199440G1
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*since 1994

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