Space weather WARNING: Type II Radio Emissions, Geomagnetic Sudden Impulse


Alert 1
SUMMARY: Geomagnetic Sudden Impulse
Observed: 2012 Nov 12 2316 UTC
Deviation: 16 nT
Station: Bou
Alert 2
Issue Time: 2012 Nov 13 0004 UTC
ALERT: Type II Radio Emission
Begin Time: 2012 Nov 12 2328 UTC
Estimated Velocity: 645 km/s

Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

2012 Nov 12 2105 UTC
Solar-terrestrial indices for 12 November follow.
Solar flux 144 and estimated planetary A-index 8.
The estimated planetary K-index at 2100 UTC on 12 November was 2.

About the author

Recipient of many prestigious NASA Awards including the Exceptional Public Service Medal and the Robert H. Goddard award. Experience includes working for NASA, as a contractor, in satellite design, construction and operations. Expert in the satellite operations concepts and ground systems including command, control, and science data processing.