[SADXA] Interesting DX

[Wes]

Aha.

BTW I subscribed to the VLF groups.io   Andrew Klekociuk is a member. See: 
https://groups.io/g/VLF/topic/94373266#29318

Wes  N7WS




On 10/21/2022 11:55 AM, Darrel wrote:
> Correction:
>    I looked at my VLF data at higher time resolution, and I *did* see an event 
> possibly corresponding to the gamma-ray burst.
>
> NWC, Australia: about 1 dB "glitch" down in strength at 1320 UTC.
> JJI, Japan:  about 4 dB "glitch" downwards at 1320 UTC.
>
> Nothing obvious on any of the other VLF stations I was monitoring.
>
> My data, and data from other observers, are archived Stanford and can be plotted:
>
> http://sid.stanford.edu/database-browser/browse.jsp?date=2022-10-09T13.00.00&display=vertical&goesFlareStrength=A1.0&timeRange=60&size=1000x200
>
> My own data are labelled "Agua-Caliente 9471".  (I live near the Agua Caliente 
> park in Tucson.)
>
> Cheers,
>        Darrel, aa7fv.
>
> On 10/21/2022 11:30, Darrel wrote:
>> I've been monitoring several VLF stations continuously for the last few 
>> months. I looked at my data records for October 9 around 1300- 1400 UTC.  
>> This is a summary of what I received in Tucson:
>>
>> NWC 19.8 kHz, Australia: Strong signal, but nothing remarkable at that time.
>> NML  25.2 kHz, LaMoure North Dakota: Strong signal, nothing to note
>> NAU 40.75 kHz, Puerto Rico: Weak signal, but very steady and nothing remarkable
>> JJI 22.2 kHz, Japan: Strong signal, nothing to note
>> NLK 24.8 kHz, Jim Creek, Washington state: Strong signal. Possibly a weak 
>> glitch around 13:20 UTC, but comparable to the noise fluctuations.
>> NAA 24.0 kHz,  Cutler Maine: Strong signal, nothing to note
>> NPM 21.4 kHz, Hawaii: Weak signal, but nothing to note.
>>
>> So, for what it's worth, I didn't notice any strong correspondence with the 
>> gamma-ray burst on any of these VLF paths.
>>
>> Cheers,
>>      Darrel, aa7fv.
>>
>> On 10/21/2022 10:37, Wes wrote:
>>> Further on this.  If you look a the map in this article it's claimed that 
>>> the propagation paths to the received VLF stations was enhanced by the gamma 
>>> ray radiation and signals outside the footprint were not received.
>>>
>>> What intrigued me was the fact that AZ was on the edge of this footprint and 
>>> this was about the time of our sunrise.  So I put the date and time in DX 
>>> Atlas and opened a rectangular map.  Lo and behold, his gamma ray radiation 
>>> footprint coincides almost completely with the solar nighttime footprint.  
>>> Coincidence?
>>>
>>> Wes
>>>
>>> On 10/21/2022 7:29 AM, Wes wrote:
>>>> https://spaceweatherarchive.com/2022/10/17/powerful-gamma-ray-burst-made-currents-flow-in-the-earth/ 
>>>> ______________________________________________________________
>>>> SADXA Website http://www.sadxa.org
>>>
>>> ______________________________________________________________
>>> SADXA Website http://www.sadxa.org
>>>
>>> SADXA mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/sadxa
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:SADXA at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> You can support qsl.net: http://www.qsl.net/donate.html
>>
>