Specimen Fireball 1 : December 06, 2008 0806:28 UT ( 1:06:28 am MST )
Preliminary Comments: This significant fireball was recorded here through clouds, about 300 miles north of my observatory.
Chris Peterson at Cloudbait Observatory in Guffey, Colorado estimates the magnitude at -18
with its terminal burst near Colorado Springs. More information to follow.
Sentinel Movie: Visual, no sound. ( Experimental camera on loan from Sandia National Laboratories.)
v20081206_010629.25.mov 3 seconds 500 KB
Sonic Movie 1: Ashcraft's dual frequency forward scatter system; video and stereo sound:
This fireball made a strong radio reflection. This movie is of the head echo only. Note the interesting "pop" sound.
FB20081206_0806uthe_Ashcraft.mp4 10 seconds 500 KB
Sonic Movie 2 : Full duration of radio reflection.
The radio reflection off the fireball's ionization was strong and long lasting.
FB20081206_0806utlo_Ashcraft.mp4 1 minute 55 seconds 5.1 MB
And here is just the extracted forward scatter sound as an .mp3. 1.7 MB 1 minute 55 seconds
Bolide20081206_Ashcraft.mp3
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 0806-0809 UT minutes.
Specimen Fireball 2: December 06, 2008 0941 UT
No movie entry for this meteor due to wind interference on the radios.
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 0941-0942 UT minutes. High winds caused radio buzz during this meteor.
Specimen Fireball 3 : December 06, 2008 1037 UT
Sonic Movie : Ashcraft's dual forward scatter system; video and stereo sound:
Weak radio reflection but evident.
FB20081206_1037ut_Ashcraft.mp4 23 seconds 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 1037 UT minute.
Specimen Fireball 4 : December 06, 2008 1057 UT
Sonic Movie : Ashcraft's dual forward scatter system; video and stereo sound:
Strong dopplering head echo in stereo. Nice specimen.
FB20081206_1057ut_Ashcraft.mp4 27 seconds 1.2 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 1057-1058 UT minutes.
Specimen Fireball 4 : December 06, 2008 1146 UT
Poor specimen. Movie not included.
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 1102-1103 UT minutes.
Best Selected Fireballs
Thomas Ashcraft
35.50 North Lat. 105.89 West Long.
New Mexico
Mail
To Heliotown and more various specimens
Thomas Ashcraft
35.50 North Lat. 105.89 West Long.
New Mexico
To Heliotown and more various specimens