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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September 1998

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1

M1.5
Kp4

2

M2.2
Kp3-

3

M1.3
Kp3+

4

C3.2
Kp2-

5

C2.2
Kp3-

6

C3.9
Kp2+

7

C1.0
Kp3

8

C2.5
Kp4-

9

M2.8
Kp3+

10

C4.2
Kp3-

11

M2.1
Kp3

12

C3.1
Kp3+

13

C8.3
Kp3-

14

C1.2
Kp2

15

C2.0
Kp2+

16

B7.5
Kp2-

17

B5.7
Kp3

18

B4.7
G1

19

B6.8
Kp3-

20

M1.8
Kp3-

21

C2.8
Kp4-

22

C3.4
Kp3+

23

M7.1
Kp3

24

C6.0
G2

25

C2.7
G4

26

C1.6
Kp4+

27

C6.0
Kp3+

28

M3.5
Kp2

29

C6.1
Kp3

30

M2.8
Kp4
    
       

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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 2019:270
Current stretch spotless days:43

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*since 1994

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