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Zoom link for Monday April 29th 19:00 MuonPython
The next in the series for muon Data Processing, Rupert Powell is the tutor.
Join Zoom Meeting Meeting ID: 851 7881 4501 Passcode: 658537 -- ???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ??? |
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Meteor echoes of the day
开云体育This image caught yesterday shows the diversity of echo shapes we
are seeing on the "live" waterfall display. The strong echo seen
at the bottom of the displays was of roughly equal strength in
both Horizontal and vertical polarisations at NW Hampshire and was
seen faintly at Norman Lockyer but not at all by Armagh. The
complex echo above it was seen quite differently from the
different locations. The smaller echo seen by NW Hampshire
Horizontal but not vertical was also seen faintly at Norman
Lockyer but not at all by Armagh. There is so much to study.? And
we are still looking for a radio quiet location in Scotland for
another receiver. |
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Re: Enormous M1 Solar Flare today - Sudden Ionospheric Disturbance 19/4/2024
There were lots of solar radio bursts throughout most of the day.
Mostly approx 10 seconds duration, at intervals spaced by a few minutes. Multiple ones at around 16:15 and this spectacular one at around 16:37, extending up from 20 to 60MHz, and 30dB above the noise floor at 35MHz. Regards, Martin |
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Re: Python Data processing and Visualisation #2 - Monday April 22.nd 19:00 BST. Zoom link
开云体育Well spotted Andrew, ? I’ll post a correction.? The link will be the one in the post with April 22nd in the subject – the latest post. ? Join Zoom Meeting ? Best wishes, ? Paul. ? Paul Hearn BAA Radio Astronomy Section Director UKRAA Trustee ? EUCARA – The Conference for Amateur Radio Astronomers. Visit: eucara.org ? ???? British Astronomical Association? ?? ?? e???? paul@... a???? RG6 1BU UK t???? +44 (0)7967 388 578 ? ? ? From: [email protected] <[email protected]> On Behalf Of Andrew Thornett via groups.io
Sent: Friday, April 19, 2024 7:12 PM To: [email protected] Subject: Re: [baa-rag] Python Data processing and Visualisation #2 - Monday April 22.nd 19:00 BST. Zoom link ? Hi Paul, 15th April was last Monday! Is link still same for 22nd April? Andy ? From: [email protected] <[email protected]> On Behalf Of Paul Hearn via groups.io ? The 2nd session in this series is Monday 15th April 19:00.? Rupert (Roo) Powell will be the tutor and we will be getting into Python on the Raspberry Pi for muon data processing. Come with your questions. ???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ??? -- ???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ??? |
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Enormous M1 Solar Flare today - Sudden Ionospheric Disturbance 19/4/2024
开云体育Attached from LRO, Lichfield, UK Andy |
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Re: Python Data processing and Visualisation #2 - Monday April 22.nd 19:00 BST. Zoom link
The 2nd session in this series is Monday 15th April 19:00.? Rupert (Roo) Powell will be the tutor and we will be getting into Python on the Raspberry Pi for muon data processing. Come with your questions.
Join Zoom Meeting Meeting ID: 851 7881 4501 Passcode: 658537 -- ???? Paul Hearn? ???? ?paul@...? ???? ?RA Section Director? ??? |
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Meteor echo of the day
开云体育Lots of interesting echoes as the Lyrids approach. The main echo in the first of today's screenshots is not strongly polarised or is perhaps linearly polarised at about 45 degrees to the Hampshire antennas.? While the same pattern is seen at Norman Lockyer, Armagh sees just a single clearly defined tail echo. Perhaps for the peak of the Lyrids some of the subscribers to the
group might like to organise an observation session noting the
number of echoes in a? period or periods to calculate the hourly
rate and to note which observatories see the echoes and even grab
some screenshots. The meteor beacon project's aim is to provide an
instrument for those studying meteors to use ! This second screenshot shows another of these spectrally spread
echoes seen by all the receivers in the network ... along with
other echoes. Later in the project we hope to automate the capture of these
events with their raw I/Q data which includes precision timing so
that observations from different receivers can be correlated. |
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Meteor echoes of the day
开云体育These two echoes clearly seen at Norman Lockyer and at Armagh are unseen at NW Hampshire with either Horizontal or Vertical polarisation. This strongly suggests that meteor echoes at 50MHz can be highly
directional. NW Hampshire is suffering from increased noise levels
at present. This is
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Re: Meteor Echoes of the day.
开云体育Hello Mike I'm glad you're finding the live stream interesting.? We have a bit of a bottle neck in the Software department at the moment but when that's cleared we want to complete Phase 2 of the project which will result in some improvements to the live display which have made it necessary to purchase our own server, currently we are guests on someone else's server where we are limited by processing power and have occasional drop outs. There's such a drop out at the moment and the folks who can fix it are unavailable right now. The next Phase (3), once we have moved the heavy work load to our own server, will be to make available the live streams of data from the receivers. This has greater bandwidth and includes precision timing , neither of which can be usefully displayed live, and will allow the display of head echo Doppler slope which the Live display cannot cope with as it's too slow.? The format is similar to? .wav and we hope and expect that it will be possible to take this into other software such as spectrum lab for analysis and system development. We will need to develop trigger criteria so that so that we can store data for events of interest for post processing without using up Terra Bytes of memory ! So lots to do ! Today's screenshot shows the kind of bandwidth we are aiming to
stream. In fact we are streaming 7 or 8 KHz as this enables the
timing marks to be resolved to a mS or so ( we hope). Bearing in
mind that we are dealing with the speed of meteors not that of
light this should give us scope for some useful measurements.???
All the best Brian The lower edge of the timing marks as
viewed on the waterfall at 50.406MHz correspond to UTC second
rollover and encrypted in pulse length is the UTC time and date
plus some other data such as receiver I/D.
On 14/04/2024 09:40, Mike German via
groups.io wrote:
On 14/04/2024 09:40, Mike German via groups.io wrote:Hallo Brian, |
Paul Hearn
