Whitham D. Reeve
Image taken:
Oct. 22, 2009
Anchorage, Alaska USA, latitude 61N
Attached is a magnetogram from my observatory in Anchorage Alaska USA that recorded the geomagnetic storm (K-index = 5) at 1057 Oct 22 UTC. Note: The magnetogram is not calibrated so only registers K-index = 4 but the Space Weather Prediction Center showed this event as K-index = 5.
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