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Re: Meteor echo of the day
Brian, oh dear - we both have problems reading each others scales :-) top? ? ? ?13/01/2025 09:08:20.058 middle? 13/01/2025 09:08:20.006 bottom? 13/01/2025 09:08:19.999 variation due to start
By Mike German · #1823 ·
Re: Meteor echo of the day
Looks like a match ! We are making some changes to the live streams and I may be able to allocate receiver 6 to monitor GRAVES or BRAMS or VVS from time to time. Receiver Numbers at
By Brian · #1822 ·
Re: Meteor echo of the day
Hello Mike I can't see the time stamps on your image. The start of the echo on the Meteor Echo of the day would appear to be about 09:08:23 being about 50 seconds before the image time stamp that
By Brian · #1820 ·
Re: Meteor echo of the day
I don't usually bother with looking at my spectrograms but I think this is the same event captured on my three systems using GRAVES backscatter. .
By Mike German · #1819 ·
Meteor echo of the day
Hello Folks.? How many of you spotted that for the last few weeks the Norman Lockyer Observatory had become the Normal Lockyer Observatory. This typo crept in while work was being done on the server
By Brian · #1818 ·
Re: Mapping hydrogen Milky Way data to sphere
That explains it, thanks, excellent work
By Tony Murphy · #1817 ·
Re: Mapping hydrogen Milky Way data to sphere
I am not sure what wavy green lines you are referring to? The mapping to a sphere shows the Milky Way - high signal red weaker signal green weak signal green/blue, not able to access area is dark
By Andrew Thornett · #1816 ·
Re: Mapping hydrogen Milky Way data to sphere
Very nice, what do the wavy green lines represent?
By Tony Murphy · #1815 ·
Re: Which Antenna Orientation to use for Meteor Observation
Thanks Brian, it will take me a few days to get organised but will post back when I get it working cheers Tony
By Tony Murphy · #1814 ·
Re: Which Antenna Orientation to use for Meteor Observation
Hello Tony I think the convention is to use horizontal polarisation but whether H or V or something in between some echoes will be attenuated as at 6m they are often randomly, linearly polarised
By Brian · #1813 ·
Which Antenna Orientation to use for Meteor Observation
Hi, I have a 6m wire antenna (par end fez) and am planning to use this to detect meteor reflections from the UK Meteor Beacon GB3MBA. Does the orientation matter? As a wire I can set up in any
By Tony Murphy · #1812 ·
Re: BAA RAZoom Friday 10th Jan 19:30 Atmospheric Ionisation
The link has been sent out.? If you have not received or If you are not on the distribution list and want to be added, let me know. I will be on the call,? Andrew Thomas will be the
By Paul Hearn · #1811 ·
Mapping hydrogen Milky Way data to sphere
This might interest you all Andy https://www.astronomy.me.uk/mapping-lro-h1ptarmigandata-290524-180824-to-sphere-inside-outside-views-5-1-2025
By Andrew Thornett · #1810 ·
BAA RAZoom Friday 10th Jan 19:30 Atmospheric Ionisation
*Developing and deploying an instrument for measuring ionisation in the atmosphere* *Dr Justin Tabbett - School of Civil, Aerospace and Design Engineering Bristol University* *Something a little
By Paul Hearn · #1809 ·
Meteor echo of the day
Happy New Year. This morning the UK meteor radar project live stream at https://ukmeteorbeacon.org/beaconclient/? ? is seeing many exotic echoes such as this example.
By Brian · #1808 ·
Re: Meteor echo of the day
BTW I never see a 'direct' signal. I do admit that the spectrogram images on the the lower frequencies can be far more exotic in nature ?... but remain a subject of conjecture as to the distribution
By Mike German · #1807 ·
Re: Meteor echo of the day
The theory, and results are in the given paper. also there is a description in there ISS passage to north of GRAVES and detections as conducted by the Collaborative Database exercise. I am convinced
By Mike German · #1806 ·
Re: Meteor echo of the day
Hello Mike I am not? disputing that meteors over the UK can be detected by the GRAVES emissions. What I am saying is that the means by which the radiation from Graves reaches the region is not as
By Brian · #1805 ·
Re: Meteor echo of the day
There is proof postive evidence that meteoroids have been detected over England, Wales and Scotland. If you are interested in seeing the coverage and why,? there is a paper in WGN, Journal of the
By Mike German · #1804 ·
Re: Meteor echo of the day
Hello Brian There is good evidence that receivers of Graves meteor scatter in central southern England can detect scatter from meteors over NE France and the English Channel (e.g. Fleet, R.,
By Chris Holt · #1803 ·