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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October 2017

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1

Kp3+

2

Kp3+

3

B2.2
Kp3

4

B2.4
Kp2+

5

C1.0
Kp3+

6

B9.8
Kp3-

7

B4.9
Kp2-

8

B5.0
Kp2-

9

B1.4
Kp2

10

Kp2

11

G1

12

G1

13

G2

14

G1

15

G1

16

Kp3

17

Kp2-

18

Kp2+

19

Kp4-

20

M1.0
Kp4-

21

B3.3
Kp3

22

B2.2
Kp3

23

Kp2+

24

G1

25

G1

26

Kp4+

27

B1.8
Kp2

28

Kp2

29

Kp2-

30

Kp1

31

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:2019/08/05Kp5 (G1)
Number of spotless days in 2019:158
Current stretch spotless days:13

This day in history*

Solar flares
11998X3.9
22002M3.1
31998M3.0
42004M3.0
52003M2.7
ApG
1200638G2
2200230G1
3201729G1
4199924
5200319G2
*since 1994

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