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 2003

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1

C2.3
G1

2

C3.6
G1

3

C6.5
Kp4+

4

M1.9
G1

5

C6.9
G1

6

C5.9
Kp3

7

C2.6
Kp3-

8

B7.7
G1

9

M2.5
G1

10

B7.3
Kp4+

11

C7.4
Kp4

12

B8.9
Kp3+

13

C2.7
Kp3+

14

C1.1
Kp4+

15

B4.4
Kp4

16

B2.1
G1

17

C4.4
G1

18

M1.1
Kp4+

19

B5.7
Kp3

20

C4.4
Kp4-

21

M2.8
G1

22

C4.0
Kp4+

23

M5.1
Kp4

24

M3.3
G1

25

M1.2
G1

26

M7.0
Kp4

27

M1.7
Kp4-

28

C4.4
Kp4+

29

M1.1
G2

30

C1.1
G2
    
       

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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

This day in history*

Solar flares
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ApG
1201055G4
2200550G3
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*since 1994

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