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 1997

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1

C2.2
Kp4+

2

C2.2
Kp3

3

C1.2
Kp4-

4

B1.2
Kp4

5

B5.6
Kp4-

6

B3.7
Kp3+

7

C6.8
Kp3

8

Kp2-

9

C1.5
Kp3-

10

G1

11

G3

12

Kp3+

13

B8.2
Kp3+

14

C1.2
Kp2

15

C1.0
Kp2

16

B3.5
G1

17

B2.7
G1

18

Kp4-

19

Kp3+

20

Kp2

21

G1

22

G1

23

Kp4-

24

G1

25

Kp2+

26

B6.8
Kp1

27

Kp2-

28

Kp1

29

Kp2-

30

Kp3+
    
       

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Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
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Last 365 days316 days
2020125 days (80%)
Last spotless day2020/06/02

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*since 1994

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