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

C9.1
Kp4-

2

M1.5
Kp2

3

C4.1
Kp2-

4

C8.7
Kp4

5

C4.9
Kp2-

6

C7.4
Kp3-

7

M4.7
Kp2

8

C7.2
Kp2-

9

M2.5
Kp2-

10

C5.7
Kp1+

11

C3.3
Kp3

12

C5.2
Kp2+

13

C6.3
Kp2+

14

C6.6
Kp3-

15

C9.7
Kp5+

16

M1.0
Kp6

17

C4.4
Kp2+

18

M2.5
Kp3

19

M1.4
Kp3+

20

X1.11
Kp3-

21

M1.1
Kp3-

22

M4.9
Kp3-

23

C4.6
Kp3-

24

M1.1
Kp4+

25

C8.4
Kp5

26

M1.6
Kp3

27

M1.2
Kp2+

28

M1.9
Kp2+

29

M3.8
Kp4-

30

C5.7
Kp3
  
       

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Space weather facts

Last X-flare2024/05/15X2.9
Last M-flare2024/05/17M7.1
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024157.7 +21.2
Last 30 days171.7 +57.7

This day in history*

Solar flares
12022M5.6
22023M5.3
32023M2.7
42023M2.5
52023M2.32
ApG
1195233G2
2195326G1
3198422G1
4194319G1
5197515G1
*since 1994

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