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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December 2004

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1

M1.71
Kp4

2

C1.05
Kp2-

3

M2.16
Kp1

4

B7.04
Kp0

5

B4.46
Kp4+

6

B3.15
Kp4+

7

Kp4-

8

C3.62
Kp3+

9

C1.7
Kp3-

10

B1.8
Kp3

11

B8.37
Kp4+

12

B4.95
Kp5+

13

B4.53
Kp4+

14

B4.38
Kp2+

15

B8.98
Kp2+

16

B5.47
Kp4

17

B5.6
Kp4

18

B5.85
Kp4+

19

C2.69
Kp1+

20

B5.62
Kp2+

21

C1.31
Kp4+

22

C3.41
Kp4+

23

C7.39
Kp2+

24

C2.58
Kp2

25

Kp4

26

C1.42
Kp3

27

B6.83
Kp3-

28

M1.04
Kp5-

29

M3.37
Kp4+

30

M6.08
Kp5-

31

M1.8
Kp3-
  
       

Number of C-, M- and X-class flares

Combination chart with 4 data series.
The chart has 1 X axis displaying Time. Data ranges from 1970-01-01 00:00:00 to 1970-01-01 00:00:00.
The chart has 2 Y axes displaying Number of flares, and X-ray background flux.
SpaceWeatherLive.com
End of interactive chart.

Kp-index

Combination chart with 2 data series.
According to the finalized Kp-index of GFZ Potsdam
The chart has 1 X axis displaying Time. Data ranges from 1970-01-01 00:00:00 to 1970-01-01 00:00:00.
The chart has 2 Y axes displaying Kp-index, and Ap-index.
SpaceWeatherLive.com
End of interactive chart.

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Last X-flare2025/05/14X2.7
Last M-flare2025/05/21M1.2
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