Viewing archive of Tuesday, 11 September 2018

GFZ Potsdam official Kp-index

00-03h 03-06h 06-09h 09-12h 12-15h 15-18h 18-21h 21-00h Ap
4-566-334-2+ 35

NOAA estimated Kp-index

00-03h 03-06h 06-09h 09-12h 12-15h 15-18h 18-21h 21-00h
45664332

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/11/05Kp6 (G2)
Number of spotless days in 2018:208
Current stretch spotless days:3

This day in history*

Solar flares
11998M8.0
22014M6.9
32002M2.4
41999M1.5
51999C9.4
ApG
1200722
2201716
3200413
4200611
520019
*since 1994

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