Tuesday, January 7, 2014

M7.2 Solar Flare-Radiation Storm still in progress

via Solarham.net

RADIATION STORM IN PROGRESS: Energetic solar protons are streaming past Earth today, triggering an S1-class solar radiation storm. They were propelled toward us by an explosion in the magnetic canopy of old sunspot AR1936.

M7.2 Solar Flare
A strong M7.2 solar flare was observed Tuesday morning at 10:13 UTC around large sunspot 1944. The event generated a TenFlare measuring 409 solar flux units (sfu) and lasted 5 minutes. More updates to follow regarding a possible coronal mass ejection (CME). Imagery below by SDO/EVE. Stay tuned to SolarHam.com for the most up to date information.
UPDATE: At this point, it does not appear that a noteworthy coronal mass ejection (CME) was produced. I will continue to monitor the situation and post further updates if necessary. Click HERE for a movie.
SUMMARY: 10cm Radio Burst
Begin Time: 2014 Jan 07 1011 UTC
Maximum Time: 2014 Jan 07 1012 UTC
End Time: 2014 Jan 07 1016 UTC
Duration: 5 minutes
Peak Flux: 409 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Updated 01/07/2014 @ 12:30 UTC
Solar Update / Aurora Watch
Good morning. Below is an updated look at the visible solar disk on Tuesday morning. Solar activity reached high levels with two M-Class solar flares detected within the past 24 hours. The first, a low level M1.0 flare, was observed around sunspot 1946 at 03:55 UTC. The active region located in the northern hemisphere showed gradual spot growth, especially within the center of the group. The second event, a fairly impulsive M7.2 flare, was centered around sunspot 1944 at 10:13 UTC Tuesday morning. The quick release of energy was associated with a 10cm Radio Burst (Ten Flare) measuring 409 sfu and lasting 5 minutes. It does not appear that a coronal mass ejection (CME) was produced. The active region remains fairly complex (Beta-Gamma-Delta), and will remain a threat for further isolated moderate to strong solar flares. All other visible regions were either stable or in a state of decay.
A coronal mass ejection (CME) is expected to deliver a glancing blow to our geomagnetic field today. EPAM proton levels as measured by the ACE Spacecraft continue to trend higher, indicating that the plasma cloud shock front may still be approaching. Minor Geomagnetic Storming will be possible at high latitudes.

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