Viewing archive of Thursday, 13 September 2001

GFZ Potsdam official Kp-index

00-03h 03-06h 06-09h 09-12h 12-15h 15-18h 18-21h 21-00h Ap
3-5-5-42+220+ 18

NOAA estimated Kp-index

00-03h 03-06h 06-09h 09-12h 12-15h 15-18h 18-21h 21-00h
34543331

<< Go to daily overview page

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%

Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:243
Current stretch spotless days:16

This day in history*

Solar flares
12002M7.4
22003M4.5
32003M3.9
42003M3.2
52003M1.8
ApG
1200326G1
2199917
3201515G1
4199614
5199711
*since 1994

Social networks