Specimen Meteor 1 : February 21, 2009 1153 UT
Observer's comment: ELF/VLF ( very low frequency ) radio monitoring now in conjunction with all-sky Sentinel video.
Sentinel camera and fireball capture system on loan from Sandia National Laboratories.
MOVIE : Sonic VLF at time of meteor: No obvious enhancement of sferics noted.
FBvlf20090221_1153ut_Ashcraft.mp4 9 seconds 350 KB
Below is a 25 second spectrogram of radio reception at the time of the meteor. Red bar is meteor moment.
Specimen Meteor 2 : February 21, 2009 1108 UT
MOVIE : Sonic VLF at time of meteor: No obvious enhancement of sferics noted.
FBvlf20090221_1108ut_Ashcraft.mp4 13 seconds 480 KB
Specimen Meteor 3 : February 21, 2009 1208 UT
MOVIE : Sonic VLF at time of meteor: No obvious enhancement of sferics noted.
FBvlf20090221_1208ut_Ashcraft.mp4 11 seconds 428 KB
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