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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April 2016

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1

B1.3
Kp1+

2

B2.1
G1

3

B3.1
Kp4+

4

B4.1
Kp3-

5

B4.6
Kp3-

6

C1.4
Kp2+

7

C1.9
G2

8

C1.1
G1

9

C2.8
Kp1

10

C1.5
Kp3-

11

C1.4
Kp3

12

C1.8
G1

13

C2.9
G1

14

C1.8
G1

15

C4.1
Kp4

16

C5.8
Kp4-

17

C2.4
Kp4

18

M6.7
Kp2+

19

C1.0
Kp1

20

B8.5
Kp1+

21

B4.7
Kp2-

22

Kp4

23

B1.3
G1

24

B5.9
Kp4

25

B3.0
Kp2-

26

B8.0
Kp3-

27

B7.5
Kp3

28

C1.9
Kp2

29

B6.7
Kp1

30

C1.2
Kp3
 
       

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:72
Last spotless day:2020/03/30

This day in history*

Solar flares
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22001M5.1
32001M3.1
42013M2.2
52004M1.7
ApG
1201055G4
2200550G3
3199441G2
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*since 1994

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