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SOLAR WATCH * Huge X8.2 Flare Sept. 10, 2017! (Updated Daily)
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[quote:SC 14589973:MV8xMzgyOTUyXzM1MTQxNjU1X0VEMDQ2Q0RC] Just posting the 'Official' information from Solen - '[b]Recent activity[/b] The geomagnetic field was quiet on December 18. Solar wind speed at SOHO ranged between 445 and 576 km/s under the influence of a high speed coronal hole stream. Solar flux measured at 20h UTC on 2.8 GHz was 116.2 (decreasing 24.2 over the last solar rotation). The Potsdam WDC planetary A index was 5 (STAR Ap - based on the mean of three hour interval ap indices: 5.3). Three hour interval K indices: 12222201 (planetary), 12233211 (Boulder). The background x-ray flux was at the class B4 level. At midnight UTC the visible solar disk had 5 spotted active regions (in 2K resolution SDO images). Region 11633 [S07E28] lost a few spots and decayed slowly. The leader spot split into two penumbrae. Region 11634 [S13E30] was quiet and stable. [b]New region 11635 [N10E76] rotated into view. The region seems to be fairly simple structured magnetically[/b]. Spotted regions not numbered by NOAA/SWPC: S2116 [N11W05] was quiet and stable. New region S2117 [S13E42] emerged to the east of AR 11634http://www.solen.info/solar/ . It is worth remembering that the Above could change in a matter of Hours. A little unfortunate that the new Region that came over the East limb 1635 must have burned itself out and is now considered to be of simple Magnetic Structure,it had looked very lively before rotating onto the Earth facing disk,typically hey!? [/quote]
Original Message
Please See Current Events Discussion On Last Page :)
We have just had another huge X flare measuring at a X8.2 originating from sunspot 2673
On September 11, 2017
[
link to legacy-www.swpc.noaa.gov
]
ALL flares recorded ARE Earth facing regardless of where the sunspot is located
-----------
CME FROM X9 HAS ARRIVED!
Issue Time: 2017 Sep 07 2242 UTC
WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2017 Sep 07 2255 UTC
Valid To: 2017 Sep 07 2330 UTC
IP Shock Passage Observed: 2017 Sep 07 2229 UTC
On September 6th we have had 2 X flares! A X2.2 at 09:10 utc & a secend larger flare just a few hours later of X9.3 at 12:02 utc. There is a large widespread Earth directed CME associated with this latest X flare as we can see here
[
link to stereo.gsfc.nasa.gov (secure)
]
[
link to stereo.gsfc.nasa.gov (secure)
]
An update as to the arrival time of this CME will be added once all data has been reviewed.
The X9.3 flare is the 14th largest X flare ever recorded!
On September 4th we had 7 M flares from fast growing sunspot 2673, with at least 1 large dense Earth directed CME. This CME will arrive late in the day on Wednesday September 6th.
There is now a 25% chance for X flares over the next 24hrs & 71% chance for M flares
We have a Long Duration M2.4 Solar Flare starting
01:05 UTC July 14th 2017
There was a full halo CME observed with this solar flare. The associated CME is Earth Directed. See discussion on the last page for all updates!
1,000,000 Views hit on July 3, 2012
A big thanks to all the wonderful contributors of
the GLP Solar Watch thread!
Please See Current Events Discussion On Last Page :)
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