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.

Previous month

July 1999

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Sun.
   

1

M1.7
Kp3-

2

M2.5
G1

3

C7.5
Kp4-

4

C9.5
Kp1-

5

M1.2
Kp2-

6

C2.4
Kp3

7

C1.9
Kp2

8

C5.7
Kp2+

9

C6.9
Kp2+

10

C1.8
Kp2

11

C3.0
Kp2+

12

C2.8
Kp3+

13

C2.9
Kp2-

14

B8.8
Kp3

15

C1.1
Kp3

16

M3.1
Kp1+

17

C5.5
Kp1+

18

C4.3
Kp1+

19

M5.8
Kp2-

20

C4.5
Kp3-

21

C2.4
G1

22

C7.1
G1

23

M1.2
Kp3

24

M3.3
Kp3+

25

M2.4
Kp3

26

C2.6
Kp2+

27

M3.0
Kp2+

28

M2.3
Kp3+

29

M5.1
Kp3

30

M1.7
G4

31

C4.6
G1
 
       

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Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days288 days
2020157 days (70%)
Last spotless day2020/07/20

This day in history*

Solar flares
12004X1.0
22004M3.0
32004M2.8
42002M1.8
52004M1.2
ApG
1199427G1
2200122G1
3200019G2
4200516
5200315
*since 1994

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