(meteorobs) Double sonic boom heard?

[Ernie Iverson]

I checked my All Sky Fireball Camera backup tape from 2300 PDT to 2330
PDT.  Unfortunately, I did not see any meteor activity in that interval.
The camera is located slightly north and west of you location (33.83N
118.27W).  The camera routinely records meteors brighter than magnitude
-2.8.  I also noted that there were no clouds obstructing the cameras
visibility and light pollution was at a typical level.  The camera has
previously recorded events reported by observers located in San Diego
and also Los Vegas, NV. If it was a fireball, the camera should have
seen it. Therefore, I think it is unlikely that the source of the sonic
boom you heard is a meteor entering the earth's atmosphere.  The last
major event in this area which produced sonics was a -13.6 fireball on
March 25, 2006 that occurred over the desert east of Los Angeles.  This
event produced three sonic events that were recorded by several stations
in the Caltech seismic network.

Ernie


 
-----Original Message-----
From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of Skywise
Sent: Wednesday, June 14, 2006 11:33 PM
To: meteorobs
Subject: (meteorobs) Double sonic boom heard?

I just heard what sounded like a sonic boom. I live
in the LA area (north Orange County) and have heard
the shuttle a couple times when it's landed at
Edwards. It sounded very much like that. At first
I thought it might have been the fireworks over at
Disneyland, but it's too late for that.

So I next thought it was a bolide. I looked outside,
but saw no leftovers.

So all I have to report is a time in case anything
shows up on any camera's.

My location is 118.0W, 33.8N.

I looked at my computer clock within 5 seconds of
hearing the sound and it said 11:18:11pm. Checking
against time.gov I am fast by 62 seconds, so a more
accurate time would be just seconds after 11:17pm.

My second thought is that someone went mach 1 and
is going to be in big trouble with their CAG when
they land.

The only other comment I can add is it sounded like
it came from the north. I am sitting facing west
with north and south windows open and it was
distinctly louder to my right, which is north.

Another person in the house heard it also.

Brian
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