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.

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September 1996

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1

Kp3-

2

Kp2-

3

Kp1

4

B3.9
Kp4+

5

Kp2+

6

Kp2+

7

Kp3-

8

Kp3-

9

Kp4+

10

G1

11

Kp4+

12

G1

13

G1

14

Kp4-

15

G1

16

Kp4

17

Kp3

18

Kp4

19

G1

20

G2

21

G1

22

G1

23

G1

24

Kp3-

25

Kp4-

26

G2

27

Kp4+

28

B1.6
Kp4+

29

Kp3-

30

Kp2-
      

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:75
Current stretch spotless days:4

This day in history*

Solar flares
12000M2.0
22000M1.8
32015M1.4
41999M1.1
52000C8.2
ApG
1200163G3
2199440G1
3199534G1
4200322G1
5201715
*since 1994

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