Wednesday, July 10, 2013
10 07 2013 CME IMPACT -- GEOMAGNETIC STORM HD
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A Coronal Mass Ejection (CME) swept past Earth on Tuesday afternoon. The ACE Spacecraft detected an interplanetary shock at 19:58 UTC. A geomagnetic sudden impulse measuring 25nT was detected at 20:49 UTC. This signaled the passage of the IP shock past our planet. The initial impact was weak, however a south tilting solar wind / Bz component aided in raising geomagnetic activity.
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