(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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