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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May 2000

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1

M1.1
Kp4-

2

M2.8
G1

3

M1.1
G1

4

M6.8
Kp2+

5

M1.5
Kp3+

6

B9.4
Kp3+

7

B4.0
Kp2

8

C4.2
Kp2

9

C9.2
Kp3-

10

C8.7
Kp3-

11

C7.8
Kp2

12

M1.0
Kp4

13

M1.1
Kp4

14

M1.0
Kp4-

15

M4.4
Kp4+

16

M3.2
Kp4+

17

C7.7
G2

18

M2.7
Kp3+

19

M1.1
Kp2+

20

C7.6
Kp2+

21

C8.2
Kp2

22

C6.3
Kp3-

23

C9.5
G3

24

M1.3
G4

25

C3.6
G1

26

C6.1
Kp4-

27

C2.4
Kp3-

28

C8.6
Kp3-

29

C1.7
G1

30

C5.0
Kp4+

31

C4.8
Kp4
    
       

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Space weather facts

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

This day in history*

Solar flares
12001C9.4
22001C8.3
32014C7.0
42001C6.5
52002C5.9
ApG
1200694G4
2200325G1
3199421G1
4201516G1
5201414
*since 1994

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