Coronal mass ejection arrival
Friday, 6 November 2015 17:54 UTC
The M3.7 coronal mass ejection looks to have arrived at ACE already! A full 24 hours earlier than expected!
An explanation can be that the coronal hole solar wind stream cleared the space in front of the CME of ambient solar wind, causing very little deceleration.
Weak #CME impact - Speed 567.9km/sec - IMF Bt (strength): 18.4nT. - Follow live on https://t.co/XHATH0OOfT pic.twitter.com/ne7bfSTmLl
— SpaceWeatherLive (@_SpaceWeather_) 6 november 2015
At arrival, the solar wind speed jumped and is now close to 600km/s. The strength of the IMF is near 17nT with a southward directed Bz component of the IMF. A minor G1 geomagnetic storm watch is in effect for the coming hours.
Thank you for reading this article! Did you have any trouble with the technical terms used in this article? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Still puzzled? Just post on our forum where we will help you the best we can!
Latest news
X2.2 solar flare, SDO outage
Major far side eruption, S1 radiation storm
Coronal hole faces Earth
Latest forum messages
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!
Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |