(meteorobs) Whitmire, SC likely fall location
actionshooting at carolina.rr.com
actionshooting at carolina.rr.com
Thu Feb 16 10:00:48 EST 2012
704-300-2871 Where are you located?
--
Stuart McDaniel
Lawndale, NC
IMCA#9052
http://spacerocks.weebly.com
http://www.facebook.com/Stuart.McDaniel.No.1
---- drtanuki <drtanuki at yahoo.com> wrote:
=============
Stuart, So that I have your contact in case you go methunting please provide a tele #. Thank you. Dirk
--- On Thu, 2/16/12, Stuart McDaniel <actionshooting at carolina.rr.com> wrote:
From: Stuart McDaniel <actionshooting at carolina.rr.com>
Subject: Re: (meteorobs) Whitmire, SC likely fall location
To: "Meteor science and meteor observing" <meteorobs at meteorobs.org>
Date: Thursday, February 16, 2012, 9:06 AM
I am only about 50 miles from the drop zone.
Stuart
McDaniel
Lawndale, NC
Secr.,
Cleve. Co. Astronomical Society
IMCA
#9052
http://spacerocks.weebly.com
From: Jim Wooddell
Sent: Wednesday, February 15, 2012 5:02 PM
To: Meteor science and meteor observing
Subject: Re: (meteorobs) Whitmire, SC likely fall
location
Okay guys...here the real scoop! Too
Funny!
http://weeklyworldnews.com/headlines/44055/ufo-over-south-carolina/
I am not signing this!
----- Original Message -----
From:
Jake
S
To: Meteor science and meteor observing
Sent: Wednesday, February 15, 2012 2:35
PM
Subject: (meteorobs) Whitmire, SC likely
fall location
The data from the seismographs, coupled with the allsky
camera lead to an estimated trajectory that does point towards those radar
hits. They are definitely within the uncertainty/error bounds.
On
Wed, Feb 15, 2012 at 12:24 PM, Mike Hankey <mike.hankey at gmail.com>
wrote:
> Hey Rob,
>
> If you wouldn't mind sending me the
kmzs for this, i'm interested to see
> what a good meteorite return
looks like.
>
> Thanks,
>
> Mike
>
> On
Wed, Feb 15, 2012 at 12:54 PM, Matson, Robert D.
> <ROBERT.D.MATSON at saic.com>
wrote:
>>
>> Hi All,
>>
>> I found the
confirming radar hits (from two radars) yesterday
>> afternoon -- I
can send the .KMZ files to anyone that is
>> interested. They are
definitely associated with the fall.
>> The reflectivity, velocity
and spectral returns all have
>> the "candystriping" that Marc Fries
and I have come to
>> associate with past confirmed meteorite
falls.
>>
>> The location is not as bad as it could be. Yes,
lots of
>> forest, but also many cleared areas due to the
nearby
>> town of Whitmire, SC. --Rob
>>
>>
-----Original Message-----
>> From: meteorobs-bounces at meteorobs.org
on behalf of Esko Lyytinen
>> Sent: Wed 2/15/2012 2:57 AM
>>
To: Meteor science and meteor observing
>> Subject: Re: (meteorobs)
[meteorite-list] GA SC Bolide seems have produced
>> a large
rock
>>
>>
>> I made a one station analysis of the
Lawndale camera video.
>>
>> The camera was calibrated with
eight found stars. And a number of frames
>> were manually
measured.
>> A direct fit to the timed directions gives the apparent
entry direction
>> approximately. In this a reasonable looking
deceleration was taken into
>> account.
>> Some level
"scaling" can be got by means of an assumed beginning height,
>>
consistent with the resulting velocity, with a few iterations.
>> I
get it arriving form az-direction around 315 or 325 . The entry
>>
velocity seems to be about 13 km/s having then he beginning height
at
>> around 80 or 85 km.
>>
>> The reulting
landing site from this model is very close to Jake's
>> southers
radar "group". I tried a further velocity (and connected
>> beginnig
height fit) and with the entry velocity of 13.4 km/s (in this
>>
model arriving from direction 319) with resulting beginning height
of
>> about 85 km. Now there is an almost exact hit! The end height
in this is
>> 26 km. Camera calibration at low elevation angles may
be not so good
>> affecting some uncertainty to this.
>>
Also a resonable rough dark flight was modeled. In this the landing
is
>> 13.8 km before the sea-level crossing of the direct
track.
>> Then the prediction from this would be a few kilometer to
the West of
>> the radar hits.
>>
>> Wind effects
are not taken into account and may well affect this.
>> Just now the
server in Wyoming tell
>>
>> "Sorry, the server is too busy
to process your request.
>> Please try again
later."
>>
>> when trying to get the atmospheric sounding
data.
>>
>> I am practically confident that these "southern"
radar hits are from
>> this. It would be good to know the exact time
of the radar hits.
>> In my opinion the northern hit it less
probabaly from this.
>>
>> No reliable end deceleration is
derived from this. And from only one
>> station data, this may not be
got quite reilably. Ablation model would
>> give a reasonable end
mass for this velocity and end height of around 5
>> kg (if OC). But
if this was strongly fragmented in early flight, as may
>> well have
happened, considering the bright flashing, this mass value may
>>
rather suit to the biggest mass(es) and the total end mass may be
bigger.
>>
>> The fall-time to the radar height would be
telling on the masses of these.
>>
>> Regards,
>>
Esko
>>
>>
>> > Here is my analysis of this
meteor:
>> >
>> > http://3dradar.wordpress.com/2012/02/15/sc-2132012-at-642-utc/
>>
>
>> > I think there is a chance there could be meteorites from
this event. I
>> > think it is highly misleading to say it
"produced a large meteorite"
>> > when nothing has been found
yet...
>> >
>> > I think the radar hits probably need
further scrutiny (Marc Fries, Rob
>> > Matson?) but it seems from
what I see, this meteor deserves a bit more
>> >
attention?
>> >
>> > - Jake
>>
>>
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>
>
>
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