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Real-time auroral and solar activity

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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July 1999

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1

M2.47
Kp3-

2

M3.6
Kp5

3

M1.08
Kp4-

4

M1.36
Kp1-

5

M1.8
Kp2-

6

C3.53
Kp3

7

C4.2
Kp2

8

C8.24
Kp2+

9

C9.96
Kp2+

10

C2.6
Kp2

11

C4.43
Kp2+

12

C4
Kp3+

13

C4.19
Kp2-

14

C1.26
Kp3

15

C1.66
Kp3

16

M4.49
Kp1+

17

C7.9
Kp1+

18

C6.14
Kp1+

19

M8.39
Kp2-

20

C6.47
Kp3-

21

C3.47
Kp5-

22

M1.02
Kp5-

23

M1.79
Kp3

24

M4.84
Kp3+

25

M3.44
Kp3

26

C3.74
Kp2+

27

M4.39
Kp2+

28

M3.37
Kp3+

29

M7.3
Kp3

30

M2.53
Kp8-

31

C6.57
Kp5+
 
       
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202685.9 -0
Last 30 days93.9 +32.1

This day in history*

Solar flares
12022M3.7
22001M2.91
32024M2.1
42022M1.67
52021M1.1
DstG
12002-126G3
22024-117G3
31957-111G3
41977-91G2
51981-81G2
*since 1994

Aurora on this day in history

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