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 2004

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1

B3.4
Kp2+

2

B6.4
Kp2+

3

Kp1+

4

Kp1

5

Kp3+

6

B8.2
Kp4-

7

C2.8
Kp3+

8

C1.5
Kp3

9

C3.2
Kp2

10

C6.9
Kp1

11

C1.1
Kp1

12

M4.8
Kp1+

13

C1.4
Kp4+

14

M1.5
G1

15

C2.7
G1

16

B8.7
Kp4-

17

B3.1
G1

18

C1.0
G1

19

M1.9
Kp3

20

C2.1
G1

21

C7.5
Kp3

22

C3.2
Kp4+

23

C1.4
Kp4+

24

B5.4
Kp2+

25

B1.1
Kp2-

26

B2.1
Kp2-

27

B1.1
Kp2

28

B1.9
Kp3-

29

B1.5
Kp2+

30

Kp2-
   
       

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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 2020:72
Last spotless day:2020/03/30

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*since 1994

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