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. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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1

Kp4+

2

Kp3-

3

A1.0
Kp1+

4

Kp3-

5

Kp2

6

Kp2

7

Kp1+

8

A8.0
Kp1

9

Kp0+

10

Kp1

11

Kp1

12

Kp2

13

Kp3

14

Kp3+

15

Kp2+

16

Kp1

17

Kp1+

18

Kp2-

19

Kp1

20

Kp2+

21

B4.3
Kp1

22

B1.0
Kp3-

23

B1.6
Kp4-

24

B4.7
Kp6-

25

B2.9
Kp4+

26

C1.0
Kp5-

27

Kp5+

28

Kp5

29

Kp4

30

Kp4
    
       

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Space weather facts

Last X-flare2024/05/15X2.9
Last M-flare2024/05/24M1.2
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024152.7 +16.2
Last 30 days147.6 +12.7

This day in history*

Solar flares
12014M2
22000M1.87
32023M1.85
42001M1.81
52000M1.7
ApG
1200093G4
2198377G4
3194078G4
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*since 1994

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