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 2015

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1

M4.5
Kp4-

2

M5.5
Kp4-

3

C3.3
Kp3+

4

M1.0
Kp4+

5

G1

6

B1.7
Kp4+

7

B5.1
G3

8

B2.7
G2

9

B1.8
G1

10

B1.5
Kp3+

11

C3.2
Kp4-

12

C1.2
G1

13

C9.5
Kp4+

14

C1.8
Kp4+

15

M1.1
Kp3-

16

M1.1
Kp3-

17

M1.5
Kp4-

18

C1.5
G1

19

C3.9
Kp2-

20

C1.2
Kp3-

21

C7.7
Kp4-

22

C4.4
Kp2

23

B9.3
Kp2+

24

C1.9
Kp4-

25

B9.2
Kp3-

26

C2.1
Kp1-

27

C3.2
Kp2

28

C1.9
Kp1

29

C1.6
Kp2+

30

C7.8
Kp3

31

M1.0
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 2020:16
Last spotless day:2020/01/23

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Solar flares
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32014M3.5
42014M2.6
52014M1.5
ApG
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4199416
5200313
*since 1994

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