Re: X3 Flare observations 9 Feb
Hello,
??? ??? For the stronger flares you often get this 'spike and
wave' shaped SID where the interference pattern from the sky wave
/ ground wave causes the signal strength to change from falling to
rising at the peak of the flare. An excellent example for a strong
flare.
John.
On 11/02/2024 18:42, philhayward652 via groups.io wrote:
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Hello,
In light of the
comments regarding the SID on 9 Feb I thought I would have a
look at what I recorded. ?I have attached a screen shot for
that day and I have recorded it - I think although its not the
classic "sharks fin" I was told to look for.
I'm using the
standard set up of ?UKRAA VLF receiver tuned to 23.4khz
(Ramsloh) and UKRAA ?antenna, using Radio Sky pipe on an old
laptop.
Phil H?
?
------ Original Message ------
From: mark@...
To: [email protected]
Sent: Saturday, February 10th 2024, 14:57
Subject: Re: [baa-rag] X3 Flare observations 9 Feb
?
Here
are my observations of the X3.3 SID showing the
characteristic 'bouncing' produced when a large decrease
in
the ionospheric height moves the sky wave through the in
phase or out of phase point.
?
Particularly
visible on 22.1 and 23.4 kHz.
?
Mark
?
?
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Re: X3 Flare observations 9 Feb
Hello, In light of the comments regarding the SID on 9 Feb I thought I would have a look at what I recorded. ?I have attached a screen shot for that day and I have recorded it - I think although its not the classic "sharks fin" I was told to look for. I'm using the standard set up of ?UKRAA VLF receiver tuned to 23.4khz (Ramsloh) and UKRAA ?antenna, using Radio Sky pipe on an old laptop. Phil H?
?
------ Original Message ------
From: mark@...
To: [email protected]
Sent: Saturday, February 10th 2024, 14:57
Subject: Re: [baa-rag] X3 Flare observations 9 Feb
? Here are my observations of the X3.3 SID showing the characteristic 'bouncing' produced when a large decrease in the ionospheric height moves the sky wave through the in phase or out of phase point. ? Particularly visible on 22.1 and 23.4 kHz. ? Mark ? ?
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Latest results on testing my AD8302-based interferometer
Any thoughts/comments/suggestions very welcome.
Seems quite DEAF to me!
Andy
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Re: X3 Flare observations 9 Feb
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From: [email protected] <[email protected]>
On Behalf Of Adrian Haiselden via groups.io
Sent: 10 February 2024 15:29
To: [email protected]
Subject: Re: [baa-rag] X3 Flare observations 9 Feb
?
My very first SID captured using my UKRAA VLF receiver and aerial.
Adrian.
?
------ Original Message ------
From: mark@...
To: [email protected]
Sent: Saturday, February 10th 2024, 14:57
Subject: Re: [baa-rag] X3 Flare observations 9 Feb
?
Here are my observations of the X3.3 SID showing the characteristic 'bouncing' produced when a large decrease
in the ionospheric height moves the sky wave through the in phase or out of phase point.
?
Particularly visible on 22.1 and 23.4 kHz.
?
Mark
?
?
|
Re: X3 Flare observations 9 Feb
My very first SID captured using my UKRAA VLF receiver and aerial. Adrian.
?
------ Original Message ------
From: mark@...
To: [email protected]
Sent: Saturday, February 10th 2024, 14:57
Subject: Re: [baa-rag] X3 Flare observations 9 Feb
? Here are my observations of the X3.3 SID showing the characteristic 'bouncing' produced when a large decrease in the ionospheric height moves the sky wave through the in phase or out of phase point. ? Particularly visible on 22.1 and 23.4 kHz. ? Mark ? ?
|
Re: X3 Flare observations 9 Feb
Here are my observations of the X3.3 SID
showing the characteristic 'bouncing' produced when a large decrease
in the ionospheric height moves the sky
wave through the in phase or out of phase point.
?
Particularly visible on 22.1 and 23.4 kHz.
?
Mark
?
?
|
Re: X3 Flare observations 9 Feb
My Magnetometer is not well maintained and the recent winds dislodged my wheel barrow, but never the less I did manage to see the flare on the 9th. It must have been a fairly major event. ? ? ? 
? ? David Farn ? ? ?
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From: [email protected] On Behalf Of callum_potter
Sent: Saturday, February 10, 2024 11:36 AM
To: [email protected]
Subject: Re: [baa-rag] X3 Flare observations 9 Feb? I saw a small dip on E-W but would not have noticed?it unless alerted.? There was a spike this morning at just before 10 am. ? On Sat, Feb 10, 2024 at 9:13?AM John Cook <jacook@...> wrote: The flare was very strong with excellent SIDs, but my single axis magnetic sensor does not show the SFE. It will be interesting to see how it is recorded in other parts of the country.
John.
On 10/02/2024 09:04, Andrew Thomas wrote: I saw similar SIDs and magnetic effects in Kent. The magnetic change was clear but less pronounced than in Scotland. In particular the effect on the Declination lasted approximately and hour and a half.
Nothing obvious in the muon counts/min.
Andrew
?
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Re: X3 Flare observations 9 Feb
No more X-flares this morning, so that
big spike does look like a local effect of some sort.
John.
On 10/02/2024 11:36, callum_potter wrote:
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I saw a small dip on E-W but would not have
noticed?it unless alerted.?
There was a spike this morning at just before 10 am.
Callum
On Sat, Feb 10, 2024 at
9:13?AM John Cook < jacook@...> wrote:
The flare was very strong with excellent SIDs, but my
single axis magnetic sensor does not show the SFE. It will
be interesting to see how it is recorded in other parts of
the country.
John.
On 10/02/2024 09:04, Andrew Thomas wrote:
I saw similar SIDs and magnetic
effects in Kent. The magnetic change was clear but less
pronounced than in Scotland. In particular the effect on
the Declination lasted approximately and hour and a half.
Nothing obvious in the muon counts/min.
Andrew
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Re: X3 Flare observations 9 Feb
I saw a small dip on E-W but would not have noticed?it unless alerted.?
There was a spike this morning at just before 10 am.
Callum
On Sat, Feb 10, 2024 at 9:13?AM John Cook < jacook@...> wrote:
The flare was very strong with
excellent SIDs, but my single axis magnetic sensor does not show
the SFE. It will be interesting to see how it is recorded in other
parts of the country.
John.
On 10/02/2024 09:04, Andrew Thomas wrote:
I saw similar SIDs and magnetic effects in Kent. The magnetic
change was clear but less pronounced than in Scotland. In
particular the effect on the Declination lasted approximately and
hour and a half.
Nothing obvious in the muon counts/min.
Andrew
|
Re: X3 Flare observations 9 Feb
The flare was very strong with
excellent SIDs, but my single axis magnetic sensor does not show
the SFE. It will be interesting to see how it is recorded in other
parts of the country.
John.
On 10/02/2024 09:04, Andrew Thomas wrote:
toggle quoted message
Show quoted text
I saw similar SIDs and magnetic effects in Kent. The magnetic
change was clear but less pronounced than in Scotland. In
particular the effect on the Declination lasted approximately and
hour and a half.
Nothing obvious in the muon counts/min.
Andrew
|
Re: X3 Flare observations 9 Feb
I saw similar SIDs and magnetic effects in Kent. The magnetic change was clear but less pronounced than in Scotland. In particular the effect on the Declination lasted approximately and hour and a half.
Nothing obvious in the muon counts/min.
Andrew
|
X3 Flare observations 9 Feb
The SID resulting from a X3.3 X-ray flare peaking at about? 13:14
UT was observed here on the Isle of Mull, particularly well seen
on signals from DHO on 23.4 kHz. Effects also seen with the other
stations monitored. No significant difference seen in either muon
or total particle counts from my pair of CW detectors.
Above, DHO Signal strength, Gyrator Rx (red), Muon count
rate(orange, 0-50 cpm) , Total count rate (Blue 0-250cpm)
DHO monitored with Paul Nicholson's VLF tools, EE-MU 0202 USB
sound card. Both receivers use a common E-field antenna.
Interestingly my magnetometer also showed a deviation of -10nT in
Bx and -8nT in By, but no clear effect on Bz.
--
Roger Blackwell GM4PMK
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Muon detectors at Astrofest
Just to show the effect of talking about something on a public stage such as Astrofest, we had the wonderful experience at Astrofest of queues of people around the BAA stand all wanting to find out more about muon detectors so much so that they
were blocking the corridor!
Looks like everyone wants their own version of the Large Hadron Collider at home!
Andy
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Re: Muon detectors and BAA RAG at Astrofest
Glad to hear that it went well. Sadly
there were no trains from here on Saturday, so I missed yet
another year.
John.
On 03/02/2024 16:41, Andrew Thornett via groups.io wrote:
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It was wonderful to see how many people stopped by
the BAA stand at Astrofest this week to find out from Andrew
Thomas and team about the UKRAA Muon Detectors. The team did
marvellous job!
Andy
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Re: Muon detectors and BAA RAG at Astrofest
Thanks John. That is very kind of you
Sent from
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Hi Andrew
Well done on a great presentation. Many attendees commented on your presentation which generated a whole lot of interest and was a very positive response to what we endeavour to deliver to a wider audience.?
Good to meet you in person too!?
Best regards
John
UKRAA Trustee
United Kingdom Radio Astronomy Association ()
It was wonderful to see how many people stopped by the BAA stand at Astrofest this week to find out from Andrew Thomas and team about the UKRAA Muon Detectors. The team did marvellous job!
Andy
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Re: Muon detectors and BAA RAG at Astrofest
Hi Andrew
Well done on a great presentation. Many attendees commented on your presentation which generated a whole lot of interest and was a very positive response to what we endeavour to deliver to a wider audience.?
Good to meet you in person too!?
Best regards John
UKRAA Trustee
United Kingdom Radio Astronomy Association ()
It was wonderful to see how many people stopped by the BAA stand at Astrofest this week to find out from Andrew Thomas and team about the UKRAA Muon Detectors. The team did marvellous job!
Andy
|
Muon detectors and BAA RAG at Astrofest
It was wonderful to see how many people stopped by the BAA stand at Astrofest this week to find out from Andrew Thomas and team about the UKRAA Muon Detectors. The team did marvellous job!
Andy
|
Re: New meteor receiver on line
Wow - that bunch of reflections all over all the receivers is impressive. I had guessed last night when I saw the upper right pane with no title that it was your opposite polarity receiver. Well done Brian Tony
On Sat, 3 Feb 2024 at 10:03, Brian < brian@...> wrote:
A new receiver in the developing network of receivers for the
GB3MBA UK meteor beacon is on line from my location for the next
few days. It is client 3 top row - right on the live stream at:-?
.? It has a vertically
polarised antenna while client 4, bottom row - left on the live
stream remains on a horizontally polarised antenna so that the
difference between H and V can be observed on the live stream
While sometimes the horizontally polarised echoes are of similar
strength to the vertically polarised ones quite often an echo will
be seen only with one polarisation. This indicates the strongly
polarised nature of? meteor echoes at 6m wavelength.
All the best Brian G4NNS
Here is an unusually strong echo seen on all 4 receivers in the
network while I was typing this email:-
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New meteor receiver on line
A new receiver in the developing network of receivers for the
GB3MBA UK meteor beacon is on line from my location for the next
few days. It is client 3 top row - right on the live stream at:-?
.? It has a vertically
polarised antenna while client 4, bottom row - left on the live
stream remains on a horizontally polarised antenna so that the
difference between H and V can be observed on the live stream
While sometimes the horizontally polarised echoes are of similar
strength to the vertically polarised ones quite often an echo will
be seen only with one polarisation. This indicates the strongly
polarised nature of? meteor echoes at 6m wavelength.
All the best Brian G4NNS
Here is an unusually strong echo seen on all 4 receivers in the
network while I was typing this email:-
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Re: BAA RAZoom Fri. Feb. 2nd. Interferometry - Marcus Leach
Hi Paul, I have not received the link. Can you please send it? Thanks, Wolfgang ? ? Friday Feb. 2nd. 19:30 GMT (19:30 UTC) on Zoom?
Amateur SDR based?interferometry -?hardware and software.??(Getting started)
Marcus Leach?President. Canadian Centre for??Experimental?Radio Astronomy
The Zoom link will be sent out on Thursday 1st Feb.
The session will be recorded for our YouTube channel.?
--
???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ???
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