Moderate solar flare measuring M2.9 erupted from Region 1777

Moderate solar flare measuring M2.9 erupted from Region 1777

A moderate solar flare registered as M2.9, at the peak time, erupted from Region 1777 on June 21, 2013. The event started at 02:30 and peaked at 03:14 UTC. A Type IV Radio Emission was associated with the event. 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.

Most of the Sun's material appears to be directed away from Earth.

Additionally a 10 cm Radio Burst was associated. 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.

Space Weather Message Code: ALTTP4
Serial Number: 421
Issue Time: 2013 Jun 21 0320 UTC

ALERT: Type IV Radio Emission
Begin Time: 2013 Jun 21 0256 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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Space Weather Message Code: SUM10R
Serial Number: 587
Issue Time: 2013 Jun 21 0349 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2013 Jun 21 0308 UTC
Maximum Time: 2013 Jun 21 0322 UTC
End Time: 2013 Jun 21 0330 UTC
Duration: 22 minutes
Peak Flux: 6000 sfu
Latest Penticton Noon Flux: 126 sfu

Comment: Re-issue from previous Summary due to updated peak flux reported by observatories.
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 7 numbered sunspot regions on the disk. Region 1777, the source of today's M2.9 flare, is located on the southeast limb and any further eruptions and CME's should be pointed away from Earth.

1770 - Alpha
1772 - Beta
1773 - Beta
1774 - Beta
1775 - Beta-Delta
1776 - Beta
1777 - Alpha

Featured image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams

Tags: cme, m-class

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