(meteorobs) Utah, Wyoming, Idaho Bolide 18NOV09

[Larry]

Impressive movies by Thomas & Chris!!!  It must have detonated very low in 
the atmosphere.

These movies and pictures stress how (VERY) important close Azimuth 
alignment to True North is for fixed cameras. So much depends on it when 
major events like this occur.

Rain ruined California skies that night....... But a great big "WOW" for 
those who captured this one......

YCSentinel


----- Original Message ----- 
From: "Thomas Ashcraft" <ashcraft at heliotown.com>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/11/18 10:46
Subject: Re: (meteorobs) Utah, Wyoming, Idaho Bolide 18NOV09


Chris and all,

Thanks for your analysis.

I have now processed my secondary video and I believe the video does
show the actual fireball just before the terminal flashing.  But, since
the distance between my observatory and the meteor's flight path is so
great  ( 300 miles and further) I hesitate to say for sure if this is
the actual fireball. It could be a coincidental meteor?  The flashes
that follow are definitely the Utah fireball.  I have further videos
with WWV  that give precise timing at November 18, 2009  0707:17-21 UT.

If this preliminary video does indeed show the trajectory it will be
helpful in triangulating.

Video in two formats:
.mp4  750 KB  :  http://www.heliotown.com/FB20091118_0707Radio_Ashcraft.mp4
.wmv  2.8 MB    http://www.heliotown.com/FB20091118_0707radio_Ashcraft.wmv

This particular video document also has VLF/ELF radio recorded which
shows no obvious emission in this case and also VHF forward scatter
which may exhibit a minor reflection.

Hoping for more data.

Thomas Ashcraft
ashcraft (at) heliotown.com
New Mexico
www.heliotown.com



Chris Peterson wrote:
> This must have been bright for a long time. Your video has all the flashes
> at an azimuth of about 309°, which gives a line across Utah from SE to NW.
> My camera shows flashes below the horizon at an azimuth of 316°, which is 
> a
> line across SW Wyoming and into Idaho, not crossing any part of Utah.
>
> Here's what my camera caught:
> http://www.cloudbait.com/meteor/data.php?recnum=29950 . Still waiting on
> other Colorado cameras; Montrose seems not to have it, which is odd. They
> are double checking the data.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message ----- 
> From: "Thomas Ashcraft" <ashcraft at heliotown.com>
> To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
> Sent: Wednesday, November 18, 2009 10:00 AM
> Subject: Re: (meteorobs) Utah, Wyoming, Idaho Bolide 18NOV09
>
>
>
>> Here is a movie of the terminal flashes of that particular meteor.
>>
>> .wmv format    http://www.heliotown.com/FB20091118_0707Ashcraft.wmv
>> .mp4 format     http://www.heliotown.com/FB20091118_0707utAshcraft.mp4
>>
>> I also have the visual meteor itself on video before it goes over the
>> edge of my field of view.
>>
>> Thomas Ashcraft
>>
>
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