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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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October 2000

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1

M7.27
Kp4

2

M2.04
Kp4+

3

C3.26
Kp5+

4

C4.94
Kp7+

5

C3.01
Kp8-

6

C3.53
Kp3-

7

C5.66
Kp2+

8

C2.99
Kp2

9

C9.59
Kp2

10

C2.67
Kp3

11

C5.09
Kp5-

12

M2.23
Kp3

13

C8.96
Kp7-

14

M1.63
Kp6-

15

C5.14
Kp3

16

M3.59
Kp4+
S1

17

C6.01
Kp3
S1

18

C2.11
Kp3

19

C5.09
Kp3

20

C2.3
Kp1

21

M4.34
Kp2-

22

C5.17
Kp5-

23

C4.17
Kp4

24

C3.27
Kp3+

25

C5.73
Kp3-
S1

26

M1.22
Kp3-
S1

27

M1.63
Kp2+

28

M2.51
Kp5+

29

M6.41
Kp6

30

C6.16
Kp5

31

C8.71
Kp4
     
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M7.6
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 2026133.3 +47.4
Last 30 days96.1 +32

This day in history*

Solar flares
12002M8.82
22026M7.6
31999M6.76
42001M2.91
52003M2.74
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Aurora on this day in history

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