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 2019

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1

Kp4

2

Kp3+

3

C1.0
Kp3-

4

C2.0
Kp3-

5

B9.8
Kp1+

6

C9.9
Kp2-

7

C1.4
Kp2

8

B1.9
Kp1

9

C6.7
Kp2+

10

B2.2
Kp3

11

G1

12

B3.7
Kp2-

13

B3.5
Kp3-

14

G2

15

C2.0
Kp2+

16

B1.4
Kp3

17

Kp2+

18

Kp2

19

Kp2-

20

Kp3+

21

Kp2-

22

Kp2-

23

A7.0
Kp2-

24

Kp2-

25

Kp2-

26

Kp3

27

Kp3+

28

Kp3

29

Kp4-

30

A1.0
Kp3

31

Kp2-
  
       

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/04/20Kp5 (G1)
Number of spotless days in 2020:120
Current stretch spotless days:29

This day in history*

Solar flares
12003X1.2
21998M6.7
32003M2.8
41999M1.6
52003M1.5
ApG
12003109G4
2199441G1
3201134G1
4201028G1
5199826G3
*since 1994

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