come da messaggio precedente, richiamo l'attenzione riportando parte di un messaggio sulla ML VLF
Is there anyone monitoring ELF/VLF/ULF in Arizona?
There was a significant fireball last night in the vicinity of Gallup,
New Mexico, possibly into eastern Arizona. It was at the edge of my
all-sky camera field of view but made a terminal flash possibly full
Moon magnitude or brighter. I hope to hear further reports.
I posted some movies with two types of radio reception at the time of
the meteor. One is 61.250 MHz forward scatter which produced a good
radio reflection. The other movie is ELF/VLF reception. It is *not
*conclusive but there is an interesting enhancement of noise at a
mid-flare point of the meteor ( 3 seconds into the movie). There does
not appear to be any noise enhancement at the final large terminal burst
however. Hence, this specimen fireball becomes another possible ELF/VLF
reception but due to dense coincident sferics it is not absolutely
provable. I am still waiting for a big one directly overhead.
Radio Fireball Observatory