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 2001

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1

M2.4
Kp2-

2

M1.8
Kp2

3

C2.9
Kp2+

4

C4.1
Kp3

5

M1.0
Kp1

6

C7.9
Kp2

7

C3.9
Kp4

8

C9.9
Kp4+

9

C1.5
G1

10

C6.1
G1

11

C3.7
Kp3+

12

M3.0
G1

13

M3.6
G1

14

C5.1
Kp4+

15

M1.0
Kp4-

16

M1.3
Kp3-

17

M1.2
Kp2+

18

C6.4
Kp3

19

C6.7
Kp4

20

M6.4
Kp2

21

C9.0
Kp1+

22

C1.4
Kp3-

23

C2.4
Kp3+

24

M1.2
Kp2+

25

C5.2
Kp3-

26

C1.1
Kp2

27

B8.5
Kp4+

28

C1.3
Kp4+

29

C4.4
Kp3+

30

Kp1+

31

C1.7
Kp1
   
       

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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 2020:15
Current stretch spotless days:14

This day in history*

Solar flares
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5201917
*since 1994

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