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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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May 2003

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1

C7.71
Kp7-

2

M1.49
Kp5

3

C3.94
Kp3

4

C2.63
Kp2

5

C2.99
Kp4+

6

C8.11
Kp5+

7

C8.51
Kp6-

8

C3.34
Kp6-

9

C5.49
Kp5+

10

B3.41
Kp7-

11

B1.79
Kp6-

12

B6.1
Kp4+

13

B3.99
Kp5-

14

B2.76
Kp5

15

B8.09
Kp4+

16

Kp3+

17

B5.13
Kp3-

18

C1.41
Kp4-

19

C1.35
Kp3+

20

C2.11
Kp3

21

C1.81
Kp6

22

C7.07
Kp5+

23

C1
Kp4

24

C1.02
Kp4+

25

C4.43
Kp4+

26

M2.81
Kp4+

27

X1.94
Kp6-

28

X5.17
Kp6-

29

X1.64
Kp8+
S1

30

M1.24
Kp7+

31

X1.33
Kp5+
S1
 
       
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
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 2026118.8 +32.8
Last 30 days102.1 +47

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*since 1994

Aurora on this day in history

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