Nov 28 2023 M9.8 short wave fade - Heliotown

[ashc...@heliotown.com]

Nov 28 2023. There was a M9.8 solar flare in the later 1900 UT hour that
manifested a short wave fade and some various types of solar radio
emissions including Type II slow drift bursts. Attached are a couple of
specimen spectrograms of the event. Thomas Ashcraft Lamy New Mexico

[Nathaniel Butts]

Nice capture.  That's scary big though.

SDO capture of it.

Thanks,

Nathan Butts

Wannabe Astronomer

Bowling Green, KY

[Anthony]

Very nice!!

My solar equipment is presently down for maintenance, and would have loved to capture the event! 

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[B & MR Randall]

What I got with single 1.8m dipole. I have a lot of local interference. Could still see the blackout & some of the flare.
First time I recorded a radio blackout.
Bruce Randall

[andrew....@googlemail.com]

Hi,

Do you think the attached plot represents a detection of this flare on my SID monitor or do these things not show up on SID monitors?

Andy

 

 

Sent from Outlook for Android

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[ashc...@heliotown.com]

Andy, I can't answer your question because I am not a VLF SID observer.
But hopefully someone here will help you. There is also a VLF email
group which is very helpful. Good luck. Thomas in New Mexico

> Hi,
>
> Do you think the attached plot represents a detection of this flare on my
> SID monitor or do these things not show up on SID monitors?
>
> Andy
>
>
>
>
>

> Sent from Outlook for Android <https://aka.ms/AAb9ysg>
>
> _____

>
> From: sara...@googlegroups.com <mailto:sara...@googlegroups.com>
> <sara...@googlegroups.com <mailto:sara...@googlegroups.com> > on
> behalf of Anthony <itpart...@gmail.com <mailto:itpart...@gmail.com>
> >
> Sent: Wednesday, November 29, 2023 4:01:07 AM

> To: sara...@googlegroups.com <mailto:sara...@googlegroups.com>
> <sara...@googlegroups.com <mailto:sara...@googlegroups.com> >

> Subject: Re: [SARA] Nov 28 2023 M9.8 short wave fade - Heliotown
>
>
>
> Very nice!!
>
>
>
> My solar equipment is presently down for maintenance, and would have loved
> to capture the event!
>
>
>
> On Tue, Nov 28, 2023 at 5:56 PM <ashc...@heliotown.com
> <mailto:ashc...@heliotown.com> > wrote:
>
> Nov 28 2023. There was a M9.8 solar flare in the later 1900 UT hour that
> manifested a short wave fade and some various types of solar radio
> emissions including Type II slow drift bursts. Attached are a couple of
> specimen spectrograms of the event. Thomas Ashcraft Lamy New Mexico
>
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[Dr. Rich Russel]

Andy,

It is not a flare. 

Check out these videos to see what plots should look like.

Rich

https://youtu.be/x66iF8ZFe38

https://youtu.be/5kpXsdhzUmU

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[Steve Berl]

SID events show up in VLF plots as a sharp rise in level, followed by a slow decay. Often referred to as a "shark fin" shape.

There are some examples in the videos Rich sent. You can also see some at 

https://solar-center.stanford.edu/SID/educators/flares.html

There's a ton of info, presentations, etc at https://solar-center.stanford.edu/SID/

Steve

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-steve

[Nathaniel Butts]

Looks like it reached a Kp7 from NOAA SWPC.  I heard of bright aurora as far south as Minneapolis, even overpowering light pollution.

Thanks,

Nathan Butts

Wannabe Astronomer

Bowling Green, KY