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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October 2023

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1

M2.5
Kp4-

2

M1.9
Kp3

3

C3.5
Kp2+

4

C3.0
Kp3+

5

C4.7
Kp5

6

C4.2
Kp3

7

M1.7
Kp2-

8

C6.6
Kp2+

9

C9.1
Kp3

10

M2.3
Kp2

11

C7.2
Kp1

12

M1.1
Kp1

13

C1.7
Kp4-

14

C9.8
Kp3

15

C3.9
Kp2-

16

C9.7
Kp2

17

C2.2
Kp1-

18

B7.3
Kp3

19

C2.7
Kp3+

20

C2.3
Kp3-

21

C2.8
Kp5

22

B9.2
Kp3

23

C2.3
Kp1-

24

C1.5
Kp1

25

C4.2
Kp2-

26

M1.4
Kp5-

27

C2.1
Kp4

28

C1.6
Kp4

29

C7.8
Kp5-

30

C1.9
Kp4

31

C5.6
Kp3-
     

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Space weather facts

Last X-flare2024/11/06X2.3
Last M-flare2024/11/07M1.4
Last geomagnetic storm2024/10/12Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024194.5 +28.1
Last 30 days160.2 +7.5

This day in history*

Solar flares
12004X2.91
22014X2.3
32001M8.19
42022M5.2
52014M3.89
DstG
12001-165G2
22000-151G3
31957-121G3
42004-117G4
51997-110G3
*since 1994

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