Selected Sonic Radio Fireball Recordings Made During
the 2008 Orionid Meteor Shower




Specimen Fireball 1 :   October 20, 2008    0841 UT

Sonic Movie  :  Ashcraft's dual forward scatter system;   video and stereo sound:
Great reflection. Head echo only in this movie.
 FB20081020_0841uthe_Ashcraft.mp4   20 seconds    3.8 MB
    
Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs during the 0841-0842 UT minutes.
 

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Specimen Fireball  2  :  October 21, 2008   0712 UT


Sonic Movie  :  Radio head echo with interesting "pop" sound as meteor flares.
First 7 seconds of radio reflection only in movie.
FB20081021_0712uthe_Ashcraft.mp4    7 seconds  1.1 MB


Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs during the 0712 - 0714 UT minutes.

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Specimen Fireball  3  :  October 21, 2008   1054 UT


Sonic Movie  :  Long and rather beautiful radio fireball reflection on both radios.  
FB20081021_1054utsp_Ashcraft.mp4    4.5 MB   1 minute 50 seconds


Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs during the 1054 - 1055  UT minutes.

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Specimen Fireball  4  :  October 21, 2008   1047 UT


Sonic Movie  :  The  fireball occurred while a previous fireball was still reflecting into my radio array.
The fireball reflections began streaming together during the shower peak.
FB20081021_1047utsp_Ashcraft.mp4   6.5 MB   43 seconds


Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs during the 1047 - 1048  UT minutes.

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Specimen Fireball  5  :  October 21, 2008   0717 UT


Sonic Movie  :  This fireball exhibited a weak head echo and then made a long gradual ascending relection.
FB20081021_0717ut_Ashcraft.mp4   3 MB   1 minute 15 seconds


Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs during the 0717 - 0718  UT minutes. The fireball reflections began streaming together during the shower peak.

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Specimen Fireball 6:   October 19, 2008    0948 UT

Observer's comments: In the image above the fireball is in the box at screen top left. That is the Moon at screen center.
Moon magnitude for this moment was -11 and the fireball may have been greater than -12 given its distance from my camera.

This significant fireball may or may not have been connected to the Orionid meteor shower but its path does line up with the Orionid radiant.
It possibly passed over northeast New Mexico, southwestern Kansas and/or northwest Texas
 and the Oklahoma panhandle. Please send eyewitness reports.
MAIL

Sonic Movie 1 :  Ashcraft's dual forward scatter system;   video and stereo sound:
Very strong fireball with a delayed ascending forward scatter reflection.
Only the first 40 seconds are included in this .mp4.
 FB20081019_0948ut40sec2_Ashcraft.mp4  40 seconds  1.7 MB

Sonic Movie 2 :  Ashcraft's dual forward scatter system;   video and stereo sound:
This movie includes the first two minutes of the reflection which lasted 13 more minutes.
 FB20081019_0948ut2min2_Ashcraft.mp4  2 minutes  5 MB
    
Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor reflection occurs from 0948 UT through to 1003 UT in the following spectrograms.
 

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