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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August 1999

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1

C9.2
Kp4+

2

X1.4
Kp2+

3

M1.3
Kp2

4

M6.0
Kp3+

5

M1.9
Kp2+

6

M1.8
Kp4

7

M1.7
Kp4-

8

C4.2
Kp4-

9

C4.5
Kp4-

10

C4.8
Kp2+

11

C1.5
Kp3-

12

C2.4
Kp3-

13

C5.3
Kp3

14

C7.2
Kp2-

15

C4.6
G1

16

C1.3
G1

17

C5.9
G1

18

C7.8
G1

19

M1.0
Kp4+

20

M9.8
G2

21

M5.9
Kp2

22

C9.8
Kp4+

23

C5.7
G2

24

C5.3
G2

25

M3.6
Kp4

26

C7.1
Kp4

27

M5.5
Kp3+

28

X1.1
Kp3

29

C9.6
Kp3

30

M3.8
G1

31

C8.8
G1
     

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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 2020:10
Current stretch spotless days:8

This day in history*

Solar flares
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ApG
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2199537G2
3199424G1
4200718
5200418
*since 1994

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