Beijing News (Reporter Wang Jingxi) According to the National Space Weather Monitoring and Early Warning Center, a large magnetic violence occurred at 2:00 to 8:00 today (April 24) from Beijing time (April 24).In the early morning of this morning, the geomagnetic storm triggered a gorgeous aurora in Karamay, Xinjiang.In addition, geomagnetic storms may also cause the orbit of Fengyun 3 Gxing, one of the meteorological satellites to decrease by about 560 meters.
北京时间4月24日2时到8At that time, the sun triggered a large -scale magnetic storm. The picture shows the comparison between the level of geomagnetic activity and the past on the 24th.National Space Weather Monitoring and Early Warning Center Picture
The reporter learned that the KP index was a migraine storm with a KP index of 8 this morning.The KP index is the global magnetic field index, which reflects the situation of Earth magnetic field activities every three hours. The larger the value, the stronger the corresponding geomagnetic activity.At present, the magnetic storm process is still underway, and the martyrs may still occur in follow -up.
The ground magnetic storm is caused by the "shock wave" generated by the sun.According to reports, the process of the ground magnetic storm was produced by the high -speed flow of the coronation cave and the throwing of the daily corona.The daily coronal material throwing is a typical solar explosion. When these substances carrying solar energy fly away from the surface of the sun at a high speed of hundreds of kilometers per second, a similar explosion shock wave will be formed, which is quickly passed to all parts of the solar system.Under their common action, the direction and size of the earth's magnetic field changed significantly, and geomagnetic storms occurred.
Fengyun No. 3 E-Star Space Extreme Telescope observation observation observationThe sun image.National Space Weather Monitoring and Early Warning Center Picture
There are many influences of magnetic storms. One of them is to drive high -level atmospheric particle movement on the earth. The end result is that it is inflated by heating and spreading towards higher space.In this way, the spacecraft flying in space must withstand greater flight resistance than usual.
According to the National Space Weather Monitoring and Early Warning Center, the rail of the Grand Magnetic Storm may cause the track 3 Gxing Railway of the Meteorological Satellite to decrease by about 560 meters, and in daily conditions, this value is much smaller.EssenceFengyun No. 3 G star is a meteorological satellite launched on April 16th. It is responsible for monitoring the precipitation and is also known as "descending sungsters".
Editor Liu Mengjie
School pair Zhao Lin
