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M2.3 Flare on 10/8/2012 @ 11:17 UTC - Sunspot (un-numbered north east limb)
[link to www.lmsal.com]

S1, S2 (and so on) storms are solar radiation storms
[link to www.swpc.noaa.gov]

the Physical measure is located to the right of the storm size
:)

Thanks Nin - but how to transfer that measure into protons/cm3??

I mean at what protons/cm3 rate should we be alarmed about a proton storm?

well for instance on the scale list, we see a S3 storm is reached with 10>3
Flux level of >= 10 MeV particles (ions)*


so we look over at the proton monitor here
[link to www.swpc.noaa.gov]
on the proton monitor we can see the level reached with the reading sizes on the left

S4 is Severe
S5 is Extreme
both are alarming levels
[link to www.swpc.noaa.gov]
to the right of the storm size it tells what the common effects are for each storm level

so the source of last night's M-flare was the unnamed region yet to rotate into view? Does anybody know if this region has been intensifying or subsiding lately?

And good morning, Solar Family! :D

Good Morning!
yup thats where it came from :)
i have been watching the backside regions and this one looks to have remained around the same size
(region is in the top right section)
[link to stereo-ssc.nascom.nasa.gov]

Thanks, NiN!

I suppose it would have to be a pretty potent region for the Goes to pick it up already, may provide an interesting week of studying for us.

whoa, did u guys see this?

[link to sohowww.nascom.nasa.gov]

nice sized CME produced with this mornings M flare
not earth directed
the region that produced this will be Earth facing in the next few days

Thanks Nin

On the STEREO B EUVI movie it looks like a large region involving both hemispheres are affected by this event. Possibly more than one event, as the CME may have come from the southern hemisphere hours later. It's difficult to analyze as we have limited views of the activity far-side.

[link to stereo.gsfc.nasa.gov]

SDO Composite image of M-flare:

[link to sdo.gsfc.nasa.gov]

What appears to be another CME in the south (3 hours later):

[link to sdo.gsfc.nasa.gov]

wow, the stereo behind is pretty impressive. The flare set off at least 2 different kind of events: the sunspot below flared and to the right there was another hyder flare which set off the CME (this is the reason why it is southward oriented). Interestingly, this flare looks just like the one we had yesterday, leaving a "scarr" on the sun...

anybody else notice that the last few CMEs were all caused by filaments (including the one we just had)?

SOLAR FLARE: This morning, Oct. 8th at 1117 UT, a solar flare erupted on the northeastern edge of the sun's disk. NASA's Solar Dynamics Observatory recorded the extreme ultraviolet flash:

[link to www.spaceweather.com]

Looks like that CME gave us some good action last night! Potsdam recorded a high of Kp 7- [link to www-app3.gfz-potsdam.de] , and even NOAA estimated two 6's.

Might be a little more fun on the way, Bz just plummeted past -15 [link to www.swpc.noaa.gov] and a G1 warning was issued:

=====================

Space Weather Message Code: WARK05
Serial Number: 806
Issue Time: 2012 Oct 08 1756 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2012 Oct 08 1800 UTC
Valid To: 2012 Oct 08 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscales

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

=======================

PS. It seems over at geoeffective enlil [link to www.swpc.noaa.gov] they've seen their mistake and put back up the 10-5 model run that shows the CME that just hit. Looks like the erasure was a glitch

Last Edited by madajs on 10/08/2012 03:20 PM

The explosion heralds the arrival of a farside active region, which will turn toward Earth later this week.

[link to stereo.ssl.berkeley.edu]



Big one at end for today

Hello all : )

Just popping by to say whoa!

Random.

I'm not on my Cpu. so I am just a observer tonight : ?

SDO Composite of action near the Southeast limb-
:SE-erupt:

RED ..RUNING...ANUNAKI!!!!

I think you are getting plasma density and proton flux mixed up. I don't believe proton flux/radiation storms are generally measured in r2N/cm3, that is usually used for plasma density.

Plasma density is a measure of how dense solar wind is, or a CME. The higher the r2N/cm3 plasma density count, the denser the solar wind or CME is, and the more impact will be felt/geomagnetic storming can occur.

I know next to nothing about solar radiation storms (S1, S2, etc.) but NiN linked you to plenty to understand that side of things (not related to plasma density as far as I know, and generally won't be measured in cm3).

Last Edited by madajs on 10/09/2012 03:47 PM

ACE Data showing Bz is very much South - More incoming!
[link to www.swpc.noaa.gov] .

DRap showing absorption [link to www.swpc.noaa.gov] if only a very little.

Ya but I can't find any density anywhere, so the G1 warning may not fulfill itself, hmm

"Caution: ACE Maneuver" <-- I take this to mean the satellite is in maneuvers at the moment and it's readings might not be particularly accurate for the moment? [link to www.swpc.noaa.gov]

PS. Almost reached 40,000 posts in this thread :)

Last Edited by madajs on 10/08/2012 04:19 PM

Yes,that is a bit of a problem : )

An ongoing one with ACE - It could be due to the IMF also being very much South,which it is - CH Stream.

I'm flying blind here as I am not on my Cpu.

Aye'..that should help explain it!

hi all .
nice flare eh? if that was fully on the disc i dare say it would have reached x.
that region has been stable for the last 2 days,i reckon its starting to decay..what d'ya think Ninn's