CME impact & G3 class geomagnetic storm – October 1, 2012
The September 28th Coronal Mass Ejection (CME) impacted Earth’s magnetic field at 22:20 UTC last night, September 30, 2012 sparking strong Geomagnetic storms at high latitudes today. The Bz component of the interplanetary magnetic field (IMF) sharply deviated to -35 nT during the impact. A weak interplanetary shock wave hit Earth at 10:20 UTC followed by a stronger CME strike at approximately 22:20 UTC. Earth’s magnetic field is still reverberating in response to these impacts.
ALERT: Geomagnetic K-index of 7
Threshold Reached: 2012 Oct 01 0300 UTC
Synoptic Period: 0000-0300 UTC
Active Warning: Yes
NOAA Scale: G3 – Strong
Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents – Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft – Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation – Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio – HF (high frequency) radio may be intermittent.
Aurora – Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Video by SolarWatcher
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CME impact & G3 class geomagnetic storm – October 1, 2012
2012-10-01 03:12:22
Source: http://thewatchers.adorraeli.com/2012/10/01/cme-impact-g3-class-geomagnetic-storm-october-1-2012/
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