Specimen Fireball 1 :   August 11, 2008    0858 UT    Perseid

This was a dynamic Perseid with a strong and intricate sonic radio signature.  Especially the head echo.
Listen to this head echo in Sonic Movie 2 below with headphones if possible for the full stereophonic experience.


Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0858ut_Ashcraft.mov  6 seconds  938 KB

Sonic Movie 2 :  Ashcraft's dual forward scatter system;   video and stereo sound:
This clip is the initial head echo of the fireball. The full duration of radio reflection is in Movie 3 below.
 FB20080811_pHE0858ut_Ashcraft.mp4     seconds  1.8 MB

Sonic Movie 3 :  Ashcraft's dual forward scatter system;   video and stereo sound:
Full duration of radio reflection....NOTE:  large file!
 FB20080811_p0858ut_Ashcraft.mp4   59 seconds  10.9 MB

Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor above occurs during the 0858-0859 UT minutes.

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Specimen Fireball 2 :   August 11, 2008    0330 UT

This fireball was not a Perseid. I am not sure if this fireball was a Kappa Cygnid meteor.
It originated from the KCG radiant area but may have been much too fast in velocity to be identified as a KCG.    Not sure.
In any case, it was a very fine fireball.

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0930ut_Ashcraft.mov  6 seconds  938 KB

Sonic Movie 2 :  Ashcraft's dual forward scatter system;   video and stereo sound:
Head echo only.  Full duration of reflection in movie 3 just below ( for researchers).
 FB20080811_kHE0330ut_Ashcraft.mp4     seconds  1.8 MB

Sonic Movie 3 :  Ashcraft's dual forward scatter system;   video and stereo sound:
Full radio reflection.        NOTE:  SUPER LARGE FILE!!!
 FB20080811_k0330ut_Ashcraft.mp4   1 minute 59 seconds  13.9 MB

Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor above occurs during the 0930-0931 UT minutes.

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Specimen Fireball 3 :   August 11, 2008    0532 UT

This fireball was not a Perseid. Also, that is the Moon through clouds at screen bottom right and
the streak above it is the fireball.

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0532ut_Ashcraft.mov  6 seconds  838 KB

Sonic Movie 2 :  Ashcraft's dual forward scatter system;   video and stereo sound:
   FB20080811_0532ut_Ashcraft.mp4   22 seconds  3.4 MB

Radio spectrogram of the time of the above meteor.  61.250 MHz reception above white line, 83.250 MHz below white line.
Meteor above occurs during the 0532 UT minute.

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The following specimens and movies are visual only. Spectrograms and Sonic Movies will be processed at a later time.



Specimen Fireball 4 :   August 11, 2008    0729 UT


Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0729ut_Ashcraft.mov  6 seconds  838 KB 

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Specimen Fireball 5 :   August 11, 2008    0730 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0730ut_Ashcraft.mov  6 seconds  838 KB

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Specimen Fireball 6 :   August 11, 2008    0920 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0920ut_Ashcraft.mov  6 seconds  838 KB

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Specimen Fireball 7 :   August 11, 2008    0926 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0926ut_Ashcraft.mov  6 seconds  838 KB

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Specimen Meteor 8 :   August 11, 2008    0950 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_0950ut_Ashcraft.mov  6 seconds  838 KB

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Specimen Meteor 9 :   August 11, 2008    1005 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1005ut_Ashcraft.mov  6 seconds  838 KB

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Specimen Meteor 10 :   August 11, 2008    1013 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1013ut_Ashcraft.mov   6 seconds  838 KB

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Specimen Meteor 11 :   August 11, 2008    1028 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1028ut_Ashcraft.mov    6 seconds  838 KB

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Specimen Meteor 12 :   August 11, 2008    1034 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1034ut_Ashcraft.mov    6 seconds  838 KB

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Specimen Meteor 13 :   August 11, 2008    1048 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1048ut_Ashcraft.mov    6 seconds  838 KB

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Specimen Fireball 14 :   August 11, 2008    1055 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1055ut_Ashcraft.mov    6 seconds  838 KB

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Specimen Meteor 15 :   August 11, 2008    1101 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1101ut_Ashcraft.mov    6 seconds  838 KB

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Specimen Fireball 16 :   August 11, 2008    1122 UT

Movie 1 :  Sentinel video camera capture, without sound:
v20080811_1122ut_Ashcraft.mov    6 seconds  838 KB
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