James Kaufman reports on a recent geomagnetic disturbance. While initially attributed to an Earth-facing coronal hole, further analysis suggests the activity was actually caused by an M-class solar flare and plasma from a sunspot group moving around the solar limb, arriving faster than expected (within 48 hours) and resulting in a disturbance rather than a full storm.
James Kaufman, World News Report, today.
We finally are seeing that geomagnetic disturbance
from that Earth-facing coronal hole.
In fact, six hours of a geomagnetic disturbance
on our estimated planetary KP index.
We've shown three hours
of a geomagnetic disturbance on our Boulder index.
And we're not showing much on our college in Fredericksburg.
But this is, in fact, from the coronal hole.
These are solar wind speeds,
and we'll take a look at those wind speeds right now.
All right, ladies and gentlemen,
we have a 3.67 and a 4.0, both geomagnetic disturbances,
not storms, but very close due to solar winds
from the coronal hole that was earth-facing
just two days ago.
We're always looking at about 40 to 50 hours for solar winds,
and that's what we're seeing right now.
Moving over to Ace, well, that wind has died off.
We won't have a storm coming up.
It'll stick with the geomagnetic disturbance here.
You can see where that plasma has gone over 10
centimeters cubed several times throughout the day.
could always also see that the solar winds were pushed up
but you would think you would think that
well you'd be seeing more solar winds
so i'm going to recall this i think this is actually
the C-flare that was earth facing that hit us right here
and pushed solar winds up i won't show
you that uh show you that C-flare now
so hey i never mind admitting that i might be wrong
and i might be wrong this looks more like a solar flare
and plasma to me and we'll look at discover
than the other, but that's the way it goes
and i guess we can probably pick this one out and it does look
In fact, we're seeing that M-flare, I reported,
on the outgoing limb, still geoeffective towards Earth.
I thought we might have a geomagnetic connection to that sunspot group.
In fact, we did.
So we're seeing this M-flare here, 1.68,
I remember it being called out as.
And it's moving very fast.
We're seeing it right now about 48 hours after the fact.
So this is a solar flare, i.e. plasma,
and we'll see exactly how high it went looking at solar one.
I will say that plasma just barely broke over the 10 centimeters cubed,
which would be the space bar of the threshold.
The shields were completely up,
and then you can see that when they went down here,
well, temperatures started to increase significantly.
The plasma did tend to go away for about an hour,
two hours of missing time here, which is a problem.
This means our shields here in blue were suddenly oriented,
and that is a problem.
That is a problem, but, well,
we escaped with just a geomagnetic disturbance and not a storm.
Our shields are still pointed southerly.
Our shields are still down 99.9% of the day here in purple.
We have solar winds starting out the day at 335.
They did go up to, let's say, 435.
And they're up to date right at 400 kilometers per day.
Although the day really ended up here
at about 417 kilometers per second.
You can see the temperature is slightly elevated
and has been all day long.
This was the M-class solar flare from the sunspot group
that was headed around the limb.
And we had a question.
It came in much quicker in 48 hours than we thought it would.
So that's kind of what I'm used to there.
I don't think that Coral Hall had anything
to do with this geomagnetic disturbance.
The solar winds just did not rise enough
to show us any significance whatsoever.
I think the big rise we got out of it
was about 440 kilometers per second.
So with that said, God bless you guys.
We were slightly hit by CME ejection from 51-51, and, well,
it's probably going around the outgoing limb by now, and we'll
be dealing with other sunspot groups in the near-term future.
God bless you guys.
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and, well, we'll be back anytime there's changes.