PSN-L Email List Message
Subject: Re: Did anybody detect a seismic signature from the Vandenburg
From: George Bush ke6pxp@.......
Date: Sat, 22 Jan 2011 12:57:48 -0800
Geoff- thanks for responding to my query-
At 02:51 PM 1/21/2011, you wrote:
>I have a signal at 20:10:19 on January 20th UTC
>but it is not a classic seismic signal.
I would guess that it would not be a classic earthquake signature.
The rocket engines increase to maximum power over a few seconds and
then as the rocket rises the vibration slowly decreases. I would
guess that there would not be a P wave and what we might see are the
surface waves.
>Since I can not see signals less than
>4.0 at 6 degrees great circle I can
>believe that what I see is not related
>to this event.
>
>If you would give date time in UTC
>I can look that time +/- 30 minutes.
>send or post the results.
The launch was reported as 1:10 pm PST, Jan 21st which is 21:10 UT
1/22/11. I do not know the actual exact time of the launch.
>I'm in Arizona and not California.
>Doubt Id see such an event here.
I agree, I am in California, but 300 miles up the coast from
Vandenburg and did not see anything that looked unusual above the
wave and surf noise. I was hoping that one of the stations in
southern California might have detected something.
>geoff
And I would like to apologize for uploading the Vandenburg? file. I
did not record a long-enough record to be able to see anything. If I
knew how I would have deleted that file from the PSN server.
>-----Original Message----- From: George Bush Sent: Friday, January
>21, 2011 6:09 PM To: psnlist@.............. Subject: Did anybody
>detect a seismic signature from the Vandenburg launch yesterday?
>Yesterday Vandenburg AFB, CA launched a very large rocket at 1:10 pm
>local time.
>See
>http://latimesblogs.latimes.com/technology/2011/01/delta-iv-vandenberg-rocket.html
>Reports were that it could be herd for 50 miles around and so I
>wondered if it could be seismically detected?
>
>I looked at that time from here but I am 300 mi away and all I could
>see is Ocean noise.
>
>George
>__________________________________________________________
Geoff- thanks for responding to my query-
At 02:51 PM 1/21/2011, you wrote:
I have a signal at 20:10:19 on
January 20th UTC
but it is not a classic seismic signal.
I would guess that it would not be a classic
earthquake signature. The rocket engines increase to maximum power over a
few seconds and then as the rocket rises the vibration slowly decreases.
I would guess that there would not be a P wave and what we might see are
the surface waves.
Since I can not see
signals less than
4.0 at 6 degrees great circle I can
believe that what I see is not related
to this event.
If you would give date time in UTC
I can look that time +/- 30 minutes.
send or post the results.
The launch was reported as 1:10 pm PST, Jan 21st
which is 21:10 UT 1/22/11. I do not know the actual exact time of the
launch.
I'm in Arizona and not
California.
Doubt Id see such an event here.
I agree, I am in California, but 300 miles up the
coast from Vandenburg and did not see anything that looked unusual above
the wave and surf noise. I was hoping that one of the stations in
southern California might have detected something.
geoff
And I would like to apologize for uploading the
Vandenburg? file. I did not record a long-enough record to be able to see
anything. If I knew how I would have deleted that file from the PSN
server.
-----Original
Message----- From: George Bush Sent: Friday, January 21, 2011 6:09 PM To:
psnlist@.............. Subject: Did anybody detect a seismic signature
from the Vandenburg launch yesterday?
Yesterday Vandenburg AFB, CA launched a very large rocket at 1:10 pm
local time.
See
http://latimesblogs.latimes.com/technology/2011/01/delta-iv-vandenberg-rocket.html
Reports were that it could be herd for 50 miles around and so I wondered
if it could be seismically detected?
I looked at that time from here but I am 300 mi away and all I could see
is Ocean noise.
George
__________________________________________________________
George
[ Top ]
[ Back ]
[ Home Page ]