(meteorobs) To: Dr. Tony Phillips

Bill Smith wesmith at outlook.com
Tue Nov 19 17:35:24 EST 2013


Thanks. I am keeping a diary on bcmeteors.net of when (and where people are
when they see ISON) + thoughts on the experience
 
Bill Smith
 
William E. (Bill) Smith
104 – 1159 Beach Drive
Victoria, BC V8S 2N2 Canada
Tel : +1-250-598-6692
Mob: +1-250-896-9926
wesmith at outlook.com
 
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of Dr. S.Aguirre
Sent: November 19, 2013 9:07 AM
To: Meteor science and meteor observing; Meteor science and meteor observing
Subject: Re: (meteorobs) To: Dr. Tony Phillips
 
Hi Bill.
 
ISON today. 2013 11 19 UT.
 
naked eye: faint 4.2.. no visible.
 
Salvador Aguirre
 
2013/11/19 Bill Smith < <mailto:wesmith at outlook.com> wesmith at outlook.com>
Hi Anyone seeing ISON yet?  With naked eye?
 
Bill Smith
 
William E. (Bill) Smith
104 – 1159 Beach Drive
Victoria, BC V8S 2N2 Canada
Tel : +1-250-598-6692
Mob: +1-250-896-9926
 <mailto:wesmith at outlook.com> wesmith at outlook.com
 
From:  <mailto:meteorobs-bounces at meteorobs.org>
meteorobs-bounces at meteorobs.org [mailto:
<mailto:meteorobs-bounces at meteorobs.org> meteorobs-bounces at meteorobs.org] On
Behalf Of Raydel Abreu (CM2ESP)
Sent: November 18, 2013 6:07 AM
To: Meteor science and meteor observing; Meteor science and meteor observing
Subject: Re: (meteorobs) To: Dr. Tony Phillips
 
Wow Jay,

I really hope you can continue with that project. It would be great if it
can be received here in Cuba, but I guess your location is too far from me.
Good luck on the project.
Raydel
 
2013/11/15 Jay Salsburg < <mailto:jsalsburg at bellsouth.net>
jsalsburg at bellsouth.net>
Hello Raydel
 
I am still investigating installing a Beacon at a Farm in my area. I have
access to a Farm about 40 miles away. It is possible to operate a Beacon at
50 MHz (100 Watts) without a permit. This has intrigued me for many years
and I am highly motivated to install this device. If anyone reading this has
advice, please express your thoughts.
 
 
I have no experience monitoring echoes reflected by Analog TV transmitter,
but I do have years experience monitoring echoes from the NAVSPASUR
transmitter, along with a good understanding of RADAR.
 
I can guess the reflections off a TV Transmitter must be Doppler noisy, even
though strong reflections are possible, that reflection’s DOPPLER signal
would be non monotonic or rather indistinct in frequency. Also, I am
guessing, it should be possible to discern the attributes you mention in
your post, but the signal return would not be very frequency specific.
Probably the only practical reason to use an Analog TV Transmitter for
forward scatter meteor detection would be only for logging activity and not
the character of the activity, at least for automated logging.
 
For forward scatter meteor detection, powerful Transmitters must be more
than 40 miles away, ideally 90 to 150 miles away. In my case, the NAVSPASUR
Transmitter was 300 miles away, but it was so powerful, I could still
receive significant activity at an antenna angel of about 25 degrees above
the horizon. This shallow angle and extreme distance, however, had an
advantage, it did not receive much unwanted reflections from aircraft.
 
From:  <mailto:meteorobs-bounces at meteorobs.org>
meteorobs-bounces at meteorobs.org [mailto:
<mailto:meteorobs-bounces at meteorobs.org> meteorobs-bounces at meteorobs.org] On
Behalf Of Raydel Abreu (CM2ESP)
Sent: Thursday, November 14, 2013 7:51 AM
To: Jean-L. AGR; Meteor science and meteor observing
Subject: Re: (meteorobs) To: Dr. Tony Phillips
 
Hello all,

I listen to the streaming mentioned for a few minutes while checking the
audio on SpectrumLab. 

One thing caught my attention... I could say almost 99.9% was zero doppler
"trail" echoes. 

However, with my current TV system (61.240 MHz) I got almost 90% high
doppler slanted "head" echoes, several ones with both "head" and "trail"
echoes, and just a few "trail" only. Also in my system the echoes are all
with different positions plus and minus offset of the weak direct carrier I
sometimes see.
So, as there is still a lot of theory I don't know can please someone
explain me better the difference between that signals and what I get?
Perhaps the meteors of the streaming are from a very distant location in
reference from the receiver. While in comparison my system is too close to
transmitter, or is it opposite.?
Few captures my system  from this evening. Time is UTC:

 <https://www.dropbox.com/s/q5i7c6y511ioicr/2013111410_0307.jpg>
https://www.dropbox.com/s/q5i7c6y511ioicr/2013111410_0307.jpg
 <https://www.dropbox.com/s/0nvzpc3fzzo5qw0/2013111407_0523.jpg>
https://www.dropbox.com/s/0nvzpc3fzzo5qw0/2013111407_0523.jpg
 <https://www.dropbox.com/s/i4aadmi5vra2czz/2013111405_0538.jpg>
https://www.dropbox.com/s/i4aadmi5vra2czz/2013111405_0538.jpg
Kind Regards,
Raydel, CM2ESP
Havana, Cuba
 
2013/11/14 Jean-L. RAULT < <mailto:f6agr at orange.fr> f6agr at orange.fr>
It is a very interesting and fascinating example of LDEs (Long Delayed
Echoes)

Jean-Louis Rault




)Le 13/11/2013 20:58, Jay Salsburg a écrit :
> From: Jay Salsburg
>
> To: Dr. Tony Phillips
>
>  <http://topaz.streamguys.tv/~spaceweather/>
http://topaz.streamguys.tv/~spaceweather/
>
> What is this page Streaming? The audio greeting (for this site) claims to
be
> streaming the audio of Meteors from the NAVSPASUR Space Fence RADAR in
> Texas, which is no longer transmitting.
>
>
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