November 05, 2013 - SUN - Earth-orbiting satellites have just detected an X3-class solar flare.
X3.3 SOLAR FLARE: A very rapid solar flare measuring X3.3 was detected around sunspot 1890 at 22:12 UTC.
The event was accompanied by a 10cm Radio Burst (TenFlare) measuring 400 sfu and a Type II Sweep Frequncy Event with a velocity of 1380 km/s.
WATCH: Major X3.3 Solar Flare - November 5, 2013.
Although this flare was intense, it was also very brief. This will mitigate any Earth effects. For instance, any radio blackouts caused by ionization of Earth's upper atmosphere will likely be short-lived.
The X3.3 event comes in as the third (3rd) largest flare in terms of peak X-Ray flux during the current solar cycle 24.
CME: Although the event was very impulsive, a coronal mass ejection (CME) is now visible in the latest LASCO C2 imagery. So far it looks to be directed mostly towards the south and away from Earth.
ALERT: Type II Radio Emission
Begin Time: 2013 Nov 05 2216 UTC
Estimated Velocity: 1380 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: 2013 Nov 05 2212 UTC
Maximum Time: 2013 Nov 05 2212 UTC
End Time: 2013 Nov 05 2214 UTC
Duration: 2 minutes
Peak Flux: 400 sfu
Latest Penticton Noon Flux: 149 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: One of the biggest sunspots of the current solar cycle emerged over the sun's eastern limb three days ago and now it is turning toward Earth.
This movie from NASA's Solar Dynamics Observatory shows the approach of sunspot AR1890:
AR1890 has an unstable 'beta-gamma-delta' magnetic field that harbors energy for strong explosions. NOAA forecasters estimate a 45% chance of M-class solar flares and a 10% chance of X-flares on Nov. 5th.
CORONAL HOLE: Solar wind flowing from the indicated coronal hole could reach Earth on Nov. 7-8.
Stay tuned for more updates.
SOURCES: Space Weather | Solar Ham.
X3.3 SOLAR FLARE: A very rapid solar flare measuring X3.3 was detected around sunspot 1890 at 22:12 UTC.
The event was accompanied by a 10cm Radio Burst (TenFlare) measuring 400 sfu and a Type II Sweep Frequncy Event with a velocity of 1380 km/s.
 |
| NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash. |
 |
| Attached image by the Solar Dynamics Observatory (SDO) captures an impusive X3.3 solar flare. |
WATCH: Major X3.3 Solar Flare - November 5, 2013.
Although this flare was intense, it was also very brief. This will mitigate any Earth effects. For instance, any radio blackouts caused by ionization of Earth's upper atmosphere will likely be short-lived.
The X3.3 event comes in as the third (3rd) largest flare in terms of peak X-Ray flux during the current solar cycle 24.
 |
| X3.3 solar flare. Image: SDO. |
 |
| The major X3.3 solar flare was the third largest flare event in terms of peak X-Ray flux during the current Solar Cycle 24. |
CME: Although the event was very impulsive, a coronal mass ejection (CME) is now visible in the latest LASCO C2 imagery. So far it looks to be directed mostly towards the south and away from Earth.
 |
| Visible CME in the LASCO C2 image. |
ALERT: Type II Radio Emission
Begin Time: 2013 Nov 05 2216 UTC
Estimated Velocity: 1380 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: 2013 Nov 05 2212 UTC
Maximum Time: 2013 Nov 05 2212 UTC
End Time: 2013 Nov 05 2214 UTC
Duration: 2 minutes
Peak Flux: 400 sfu
Latest Penticton Noon Flux: 149 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: One of the biggest sunspots of the current solar cycle emerged over the sun's eastern limb three days ago and now it is turning toward Earth.
 |
| Image: SDO/HMI |
This movie from NASA's Solar Dynamics Observatory shows the approach of sunspot AR1890:
AR1890 has an unstable 'beta-gamma-delta' magnetic field that harbors energy for strong explosions. NOAA forecasters estimate a 45% chance of M-class solar flares and a 10% chance of X-flares on Nov. 5th.
CORONAL HOLE: Solar wind flowing from the indicated coronal hole could reach Earth on Nov. 7-8.
 |
| Image: SDO/AIA. |
Stay tuned for more updates.
SOURCES: Space Weather | Solar Ham.
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by title SOLAR WATCH: Activity On The Sun Increases - Sunspot 1890 Erupts With Major X3.3 Solar Flare And Coronal Mass Ejection; THIRD LARGEST Event In Terms Of Peak X-Ray Flux During Solar Cycle 24; Impulsive Event Directed South And Away From Earth!. You can bookmark this page with a URL http://news-these-days.blogspot.com/2013/11/solar-watch-activity-on-sun-increases.html. Thank you!
Tuesday, November 5, 2013
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