(meteorobs) what happend on a radiometeordetection today?

[Andy Smith]

Hi Joe and Peter

Yes, a combination of 180+ minutes of sporadic E, and what looks like a
programming error, created the extrordinary 11000+ sec ping duration
reported on my site. Those ping durations, seen in the data box of the FFT
image, are in fact 10 minute averages of duration/number of pings for each
channel, not individual ping durations (unless only one ping was detected in
that 10 minute period, of course). I haven't got the programming capacity to
trap those high numbers right now, but I'm working on it!

During sporadic E conditions, the meteor activity indicator top left will
indicate that meteor counting is not possible, and hourly counts are reduced
to zero (automatically) to avoid erronious counts being published as much as
possible.

Hope this helps,
Andy Smith.

-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org]On Behalf Of knoll at home.nl
Sent: 18 June 2006 16:14
To: Global Meteor Observing Forum
Subject: Re: (meteorobs) what happend on a radiometeordetection today?


Hello Joe,
A meteor makes a reflection layer in the ionosphere. This ionisation stay's
only for a few mili seconds or sometimes 2 minutes.
It depends on how big the meteor was and tha angle into the athmosphere and
such things.

I think this ping of 10000 seconds was a sporadic E reflection. Such
reflections are not made by meteor hits, but radiation from the sun makes
that the E layer reflects radio signals for several hours. Such sporadic E
layer reflections are there especialy during the summer months. Not good if
you like to count meteors via radio detection.

Perhaps you can find some info on my (not actualy updated) website
http://members.home.nl/peter-knol/meteors/

Regards, Peter Knol



----- Original Message -----
From: <JsfKoeb at aol.com>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: Sunday, June 18, 2006 3:12 PM
Subject: (meteorobs) what happend on a radiometeordetection today?


>
>
> Hello all,
>
> I am new what means concreter work on meteorsearch and detection.
> Today I observed by radiometeordetection on this website:
>
> http://www.tvcomm.co.uk/radio/live.html
>
> There was a really extraordinary ping with a length of more than 10 000
> seconds. My question? what may this be?
>
> Can it be a constant tangential meteorduststream which was strong.
> Or what is possible here.
>
> Cheers
>
> Joe
> ---
> Mailing list meteorobs: meteorobs at meteorobs.org
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