Major X1.1 solar flare erupted from Earth facing AR 1890

Major X1.1 solar flare erupted from Earth facing AR 1890

Active Region 1890, located almost at the center of the disk, erupted with impulsive X1.1 solar flare at 05:14 UTC on November 10, 2013. A very bright Coronal Mass Ejection (CME) has been observed and the bulk mass seems to be heading well south of the ecliptic. A glancing blow to Earth's magnetic field is expected sometime late November 12.

Associated with this eruption was a 10cm Radio Burst (TenFlare) reaching 360 Solar Flux Units lasting 3 minutes and a Type II and IV Radio Emissions.

SUMMARY: X-ray Event exceeded X1
Begin Time: 2013 Nov 10 0508 UTC
Maximum Time: 2013 Nov 10 0514 UTC
End Time: 2013 Nov 10 0518 UTC
X-ray Class: X1.1
Optical Class: 2b
Location: S14W13
NOAA Scale: R3 - Strong
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

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ALERT: Type II Radio Emission
Begin Time: 2013 Nov 10 0513 UTC
Estimated Velocity: 1012 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.

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ALERT: Type IV Radio Emission
Begin Time: 2013 Nov 10 0534 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

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SUMMARY: 10cm Radio Burst
Begin Time: 2013 Nov 10 0512 UTC
Maximum Time: 2013 Nov 10 0513 UTC
End Time: 2013 Nov 10 0514 UTC
Duration: 3 minutes
Peak Flux: 360 sfu
Latest Penticton Noon Flux: 148 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.

Sunspots

There are currently 4 numbered sunspot regions on the disk.

1887 - Beta
1890 - Beta-Gamma-Delta
1891 - Beta
1893 - Alpha

NOAA SWPC forecasters estimate 50% chance for M-class, and 20% chance for X-class solar flare in the next three days.

Featured image: NASA SDO AIA 304

Tags: x-class

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