Solar flare-class lasting about half a fixed space and ground-based observatories, on Thursday, September 22.
The event was accompanied by a large release of solar plasma. The source of the explosion was the active region 1302, which has just appeared on the eastern limb of the disk. Vector release sent by the Earth. However, the results of simulation, the Earth will still be hurt edge cloud tentatively on Sunday, September 25.
Accordingly, at this time on earth is expected magnetic storm. The arrival of the shock wave on Earth happen at the beginning — in the second half of September 25, but geoeffectiveness this event will be low.