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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 2004

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1

B5.41
Kp3-

2

B3.74
Kp3-

3

Kp2+

4

B6.54
Kp2

5

B3.72
Kp2+

6

B2.84
Kp2+

7

B7.12
Kp1+

8

C1.02
Kp1-

9

Kp1+

10

Kp2

11

C6.08
Kp5

12

M2.41
Kp4

13

M9.71
Kp4+

14

M8.91
Kp2+

15

X2.58
Kp3

16

X5.24
Kp4+

17

X1.51
Kp6

18

M2.86
Kp2

19

C6.6
Kp3

20

X1.23
Kp3-

21

M1.28
Kp2-

22

X1.3
Kp7

23

M3.23
Kp6

24

M3.63
Kp6

25

X1.02
Kp8
S1

26

M1.88
Kp7+
S3

27

M2.2
Kp9-
S2

28

C9.03
Kp4-

29

M2.93
Kp2+

30

C1.85
Kp3+

31

M1.21
Kp2+
 
       
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/03M1.3
Last geomagnetic storm2026/04/02Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026141 +55.1
Last 30 days95.4 +31.2

This day in history*

Solar flares
12002M8.82
21999M6.76
32001M2.91
42003M2.74
52001M2.31
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Aurora on this day in history

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