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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February 1999

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1

C5.5
Kp0+

2

C1.4
Kp1

3

C1.59
Kp2+

4

C6.89
Kp3

5

Kp3

6

C1.24
Kp4-

7

B9.54
Kp3+

8

C2.69
Kp2

9

C3.41
Kp2-

10

C5.31
Kp2+

11

C2.03
Kp4

12

M2.24
Kp4+

13

M1.35
Kp3-

14

M1.44
Kp3

15

M1.05
Kp4

16

M4.64
Kp2

17

C8.24
Kp5

18

C7.43
Kp7-

19

C5.46
Kp6-

20

M1.18
Kp2+

21

M1.9
Kp3-

22

C5.46
Kp2+

23

B8.83
Kp3+

24

Kp3+

25

C3.53
Kp4-

26

C2.24
Kp1

27

C3.07
Kp2-

28

M9.44
Kp5+
       
       

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Tórshavn
Oulu
Trondheim
Umeå
The solar wind speed is currently moderately high (571.3 km/sec.)

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Minor R1 radio blackout in progress (≥M1 - current: M1.03)


Monday, 21 April 2025
20:45 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:33 UTC

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Moderate M1.99 flare

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/22M1.3
Last geomagnetic storm2025/04/21Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025120 -14.2
Last 30 days111.9 -31

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