Wednesday, February 26, 2014

A day or two late

Updated 02/25/2014 @ 12:00 UTC
Major X4.9 Solar Flare
A major solar flare measuring X4.9 was just observed around returning sunspot 1967 (newly numbered 1990) at 00:49 UTC. Despite appearing to be in an advanced state of decay, the active region remains magnetically potent. This just proves that you cannot judge a book by its cover. A 10cm radio bust measuring 3700 sfu and lasting 85 minutes was associated with the event. The sunspot is not yet in a good geoeffective position for Earth directed eruptions. The flare is the 3rd largest X-Ray event of the current solar cycle. More updates to follow regarding a possible CME.

CME Update: Attached image below by LASCO C2 captures a halo coronal mass ejection (CME) leaving the sun at a quick rate of speed following the X4.9 flare event Monday night. Click HERE for a movie. Because the source sunspot (1990, ex 1967) is still located near the east limb, the plasma cloud is directed mostly away from Earth. Despite this, there does appear to be an Earth directed component which could deliver a glancing blow to our geomagnetic field by mid week. More updates to follow in the days ahead.
ALERT: Type II Radio Emission
Begin Time: 2014 Feb 25 0045 UTC
Estimated Velocity: 1972 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.
SUMMARY: 10cm Radio Burst
Begin Time: 2014 Feb 25 0042 UTC
Maximum Time: 2014 Feb 25 0045 UTC
End Time: 2014 Feb 25 0107 UTC
Duration: 85 minutes
Peak Flux: 3700 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.

Doesn't that sound freakin awesome?!?! 

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