[meteorite-list] HUGE Meteor Sighting in Cottonwood AZ - Stats from fall

From: Jim Wooddell <jim.wooddell_at_meteoritecentral.com>
Date: Sun, 13 Apr 2014 17:57:48 -0700
Message-ID: <534B328C.4030400_at_suddenlink.net>

Hi Ruben,

I think Whetstone had far greater evidence of there being stones on the
ground if I remember correctly.
Didn't Jack find one very shortly after the fall? There were multiple
camera captures, sonics and witnesses, both visual and audible.

The sonics I refer to do include human witnesses but I tend to look for
the sonic station reports if there are any.
We certainly could use more sonic stations and that is used to back up
and confirm the video records of the events.

When I hear about possible rocks on the ground without basis, it bugs
me. It reminds me of the calling wolf syndrome.
  I just do not like seeing people going on wild goose chases but I
suppose if that floats their boat that's fine and not my concern.
But when I am working an event I wont lead someone to think there is
possibly something on the ground when I can't back that up.
In the next day or so, the gurus will likely have a good idea on the
trajectory of this meteor. There is a lot to consider.
I like the idea of work smarter, not harder!

So we still have the Tucson event....multiple camera captures, sonics
and lots of witnesses. There ought to be 100 hunters out there looking.
Nothing found to date.

Jim

On 4/13/2014 4:06 PM, Ruben Garcia wrote:
> Hi all,
>
> Jim it's pretty much the same with any meteor event. The truth is
> unless we have good Doppler information or someone personally
> witnessed a meteorite strike a house or a car, or there is a stone
> found - there's not much reason to waste time looking.
>
> Most people (me included) thought the Whetstone Mountains meteor event
> was not worth looking for - It took me over a month to even start the
> hunt. I wish I'd have started sooner.
>
> Also, the lack of Sonic reports may be due to the fact that it landed
> where no one lives and not that it didn't produce a sonic boom.
>
> I've been doing this a long time and I think the bottom line is this:
> If someone finds a meteorite, just one that went though a roof - most
> hunters would go try to find more - me included.
>
>
> On Sun, Apr 13, 2014 at 3:47 PM, Jim Wooddell
> <jim.wooddell at suddenlink.net> wrote:
>> Hi Shawn, This is a fairly normal event. Nothing much to get excited
>> about. The calculation is an error. If the 40.8km is the burn out I
>> doubt anyone will waste much time on this one.
>> No sonic reports to speak of and that is also not a good sign. The UT is
>> questionable too!
>>
>> Jim
>>
>>
>>
>>
>>
>>
>> On 4/13/2014 12:57 PM, shawnalan at meteoritefalls.com wrote:
>>> Hello Listers
>>>
>>> I found some info on the fall and here is some stats...
>>>
>>> vel 667.2 km/s beg 135.8 km end 40.8 km
>>>
>>> Now could a meteorite come from the Vel speed? I mean thats really fast
>>> 667.2km, or that could be a mistake, which I think it is? With the
>>> meteor ending at 40km there is a possibility there could be some stones
>>> on the ground. And after looking at the video I could see the meteor for
>>> around 4 seconds and at the end the meteor got brighter.
>>>
>>> more stats below...
>>>
>>> Shawn Alan
>>> IMCA 1633
>>> ebay store
>>> http://www.ebay.com/sch/imca1633nyc/m.html
>>> Meteoritefalls.com
>>>
>>>
>>> time 20140413 3.0738 hours
>>> lat 32 26 22.632 = 32.4396 deg
>>> lon 253 16 38.856 = 253.2775 deg
>>> ht 40.775 b -1.38207 7.62031 -17.37020 -7.68054
>>> alp 300.962 +/- 0.462 deg
>>> del 70.037 +/- 0.310 deg
>>> v_inf 667.240 +/- 977.292 km/s
>>> v_avg 667.240 +/- 977.292 km/s
>>> a -0.002 +/- 0.006 AU
>>> e 493.776 +/- 1444.978
>>> incl 85.761 +/- 3.793 deg
>>> omega 168.225 +/- 0.185 deg
>>> asc_node 22.922 +/- 0.000 deg
>>> v_g 667.102 +/- 977.428 km/s
>>> v_h 668.691 +/- 976.474 km/s
>>> alp_geo 301.065 +/- 0.482 deg
>>> del_geo 70.004 +/- 0.311 deg
>>> q_per 0.982 +/- 0.001 AU
>>> q_aph -0.986 +/- 0.011 AU
>>> lambda 30.964 +/- 1.513 deg
>>> beta 78.151 +/- 0.165 deg
>>> true anom 11.775 +/- 0.165 deg
>>>
>>> T_j hyp
>>>
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>>
>> --
>> Jim Wooddell
>> jim.wooddell at suddenlink.net
>> http://pages.suddenlink.net/chondrule/
>>
>>
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>

-- 
Jim Wooddell
jim.wooddell at suddenlink.net
http://pages.suddenlink.net/chondrule/

Received on Sun 13 Apr 2014 08:57:48 PM PDT