(meteorobs) meteorobs Digest, Vol 2, Issue 1
neyts at planet.nl
neyts at planet.nl
Thu Nov 1 07:54:00 EDT 2007
Guys,
take a look at the proceedings of the Radiometeorschools 2005 and 2006 many of these items are discussed and put on paper! You can order these prints via the website of IMO at www.IMO.net
73 Marc Neijts PA4MN
________________________________
Van: meteorobs-bounces at meteorobs.org namens meteorobs-request at meteorobs.org
Verzonden: do 1-11-2007 11:00
Aan: meteorobs at meteorobs.org
Onderwerp: meteorobs Digest, Vol 2, Issue 1
Send meteorobs mailing list submissions to
meteorobs at meteorobs.org
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.meteorobs.org/mailman/listinfo/meteorobs
or, via email, send a message with subject or body 'help' to
meteorobs-request at meteorobs.org
You can reach the person managing the list at
meteorobs-owner at meteorobs.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of meteorobs digest..."
Today's Topics:
1. Re: NAMN Notes: November 2007 (belatrix)
2. Re: Possible Innovation ? - fireball movies with scattersound
(stange34 at sbcglobal.net)
3. Re: Possible Innovation ? - Addendum (stange34 at sbcglobal.net)
----------------------------------------------------------------------
Message: 1
Date: Thu, 1 Nov 2007 13:41:37 +1030
From: belatrix <belatrix at ozemail.com.au>
Subject: Re: (meteorobs) NAMN Notes: November 2007
To: Global Meteor Observing Forum <meteorobs at meteorobs.org>
Message-ID: <977c8d40d6b28d1fac5c571b83f0f13b at ozemail.com.au>
Content-Type: text/plain; charset=US-ASCII; format=flowed
On 01/11/2007, at 11:25 AM, Mark Davis wrote:
>
> A question in the back there? "Yes, Wayne, why is that important?"
> Another
> good question, I love this crowd.
Was that a test to see if we are reading thru Wayne's notes! LOL
classic! :) he does great work tho!
cheers
Kearn
------------------------------
Message: 2
Date: Thu, 1 Nov 2007 05:06:04 -0000
From: <stange34 at sbcglobal.net>
Subject: Re: (meteorobs) Possible Innovation ? - fireball movies with
scattersound
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Message-ID: <000c01c81c44$e7c2b430$8694364b at area5150>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Just a suggestion for your consideration if you have established a confirmed
direct scatter connection to specific Fireball events on camera.
A research effort into characterizing Fireballs by way of scatter signal
envelope would be unique. These areas of application might be using sideband
trapizoidal modulation shape or something similar(remember the trapizoid on
early post Korean War sideband?) to determine some of the following
possibilities. (I assume you are a radio amateur).
a) Angle of attack, either approaching or receeding,
b) Direction,
c) Velocity (Speed & Direction),
d) Length of any trains as a means of determining its additional effect on
scatter,
e) Mass, or physical ablation diameter/length,
f) Ablation temperature,
g) Additional significant meteor characteristics you may think of....
Putting scatter into a "more structured science" beyond simple detection
would advance knowledge in meteor science. My opinion, however small.
YCS
----- Original Message -----
From: "Thomas Ashcraft" <ashcraft at heliotown.com>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2007/10/31 17:56
Subject: (meteorobs) Possible Innovation ? - fireball movies with
scattersound
>
> Oct 31, 2007
>
> Greetings Meteor Observers.
>
> Here is an update on my fireball capture system ( video and radio) and I
> have a question for the experts.
>
> I am now recording optically all night with an all sky camera and
> fisheye lens and have added a second forward scatter radio into my
> system. I am working at 61.250 MHz and 83.250 MHz. ( Both radios are
> ICOM PCR 1000 models). The system is now capturing fireballs with
> stereo sound.
>
> Question : Has anyone else made movies of fireballs with sound like
> this? I am wondering if this is original work or some sort of possible
> innovation?
>
> Here is a webpage with a sample movie with stereo forward scatter :
> http://www.heliotown.com/Fireball_Video_Oct_30_2007_Ashcraft.html
> :
> :
> And below are a couple of movies ( mono sound in these cases) that
> exhibit sonic detail of the fireball trail as the fireball flares.
> (Below movies are choice of .mp4 or .divx)
>
> http://www.heliotown.com/fb20071026_0755UTspec.divx 3 MB
> http://www.heliotown.com/fb20071026_0755UTspec.mp4 3.4 MB
> :
> http://www.heliotown.com/fb20071022_054550utNICE.divx 1.1 MB
> http://www.heliotown.com/fb20071022_054550utNICE.mp4 3 MB
>
> Many thanks for any references to other related work.
> .
> Clear skies,
> Thomas Ashcraft
> ashcraft(at)heliotown.com
>
> _______________________________________________
> Mailing list meteorobs: meteorobs at meteorobs.org
> To UNSUBSCRIBE, email: owner-meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
------------------------------
Message: 3
Date: Thu, 1 Nov 2007 05:50:26 -0000
From: <stange34 at sbcglobal.net>
Subject: Re: (meteorobs) Possible Innovation ? - Addendum
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Message-ID: <000601c81c4b$1a9ab2d0$8694364b at area5150>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
If I had to guess, I would bet this is what Ed Majden is preparing to do
with his new scatter equipment..... Find the relationships. :-)
YCS
----- Original Message -----
From: <stange34 at sbcglobal.net>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2007/11/01 05:06
Subject: Re: (meteorobs) Possible Innovation ? - fireball movies
withscattersound
> Just a suggestion for your consideration if you have established a
> confirmed
> direct scatter connection to specific Fireball events on camera.
>
> A research effort into characterizing Fireballs by way of scatter signal
> envelope would be unique. These areas of application might be using
> sideband
> trapizoidal modulation shape or something similar(remember the trapizoid
> on
> early post Korean War sideband?) to determine some of the following
> possibilities. (I assume you are a radio amateur).
>
> a) Angle of attack, either approaching or receeding,
> b) Direction,
> c) Velocity (Speed & Direction),
> d) Length of any trains as a means of determining its additional effect on
> scatter,
> e) Mass, or physical ablation diameter/length,
> f) Ablation temperature,
> g) Additional significant meteor characteristics you may think of....
>
> Putting scatter into a "more structured science" beyond simple detection
> would advance knowledge in meteor science. My opinion, however small.
>
> YCS
>
>
> ----- Original Message -----
> From: "Thomas Ashcraft" <ashcraft at heliotown.com>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: 2007/10/31 17:56
> Subject: (meteorobs) Possible Innovation ? - fireball movies with
> scattersound
>
>
>>
>> Oct 31, 2007
>>
>> Greetings Meteor Observers.
>>
>> Here is an update on my fireball capture system ( video and radio) and I
>> have a question for the experts.
>>
>> I am now recording optically all night with an all sky camera and
>> fisheye lens and have added a second forward scatter radio into my
>> system. I am working at 61.250 MHz and 83.250 MHz. ( Both radios are
>> ICOM PCR 1000 models). The system is now capturing fireballs with
>> stereo sound.
>>
>> Question : Has anyone else made movies of fireballs with sound like
>> this? I am wondering if this is original work or some sort of possible
>> innovation?
>>
>> Here is a webpage with a sample movie with stereo forward scatter :
>> http://www.heliotown.com/Fireball_Video_Oct_30_2007_Ashcraft.html
>> :
>> :
>> And below are a couple of movies ( mono sound in these cases) that
>> exhibit sonic detail of the fireball trail as the fireball flares.
>> (Below movies are choice of .mp4 or .divx)
>>
>> http://www.heliotown.com/fb20071026_0755UTspec.divx 3 MB
>> http://www.heliotown.com/fb20071026_0755UTspec.mp4 3.4 MB
>> :
>> http://www.heliotown.com/fb20071022_054550utNICE.divx 1.1 MB
>> http://www.heliotown.com/fb20071022_054550utNICE.mp4 3 MB
>>
>> Many thanks for any references to other related work.
>> .
>> Clear skies,
>> Thomas Ashcraft
>> ashcraft(at)heliotown.com
>>
>> _______________________________________________
>> Mailing list meteorobs: meteorobs at meteorobs.org
>> To UNSUBSCRIBE, email: owner-meteorobs at meteorobs.org
>> http://lists.meteorobs.org/mailman/listinfo/meteorobs
>
>
> _______________________________________________
> Mailing list meteorobs: meteorobs at meteorobs.org
> To UNSUBSCRIBE, email: owner-meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
------------------------------
_______________________________________________
meteorobs at meteorobs.org
To UNSUBSCRIBE or EDIT OPTIONS on meteorobs
http://lists.meteorobs.org/mailman/listinfo/meteorobs
End of meteorobs Digest, Vol 2, Issue 1
***************************************
More information about the Meteorobs
mailing list