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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August 1999

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1

M1.32
Kp4+

2

X2.03
Kp2+

3

M1.87
Kp2

4

M8.61
Kp3+

5

M2.71
Kp2+

6

M2.69
Kp4

7

M2.44
Kp4-

8

C6.01
Kp4-

9

C6.5
Kp4-

10

C6.9
Kp2+

11

C2.19
Kp3-

12

C3.56
Kp3-

13

C7.6
Kp3

14

M1.03
Kp2-

15

C6.6
Kp5-

16

C1.97
Kp5+

17

C8.47
Kp5+

18

M1.12
Kp5

19

M1.5
Kp4+

20

X1.41
Kp6-

21

M8.46
Kp2

22

M1.41
Kp4+

23

C8.21
Kp6-

24

C7.69
Kp6-

25

M5.23
Kp4

26

M1.02
Kp4

27

M7.94
Kp3+

28

X1.61
Kp3

29

M1.37
Kp3

30

M5.49
Kp5

31

M1.26
Kp5
     
Currently there's no noteworthy space weather

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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/17M1.0
Last geomagnetic storm2025/02/15Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025153.7 +16.7
Last 30 days157.8 +3

This day in history*

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DstG
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*since 1994

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