[meteorite-list] coloma witnesses

From: Mike Hankey <mike.hankey_at_meteoritecentral.com>
Date: Tue, 15 May 2012 17:50:21 -0400
Message-ID: <CAJak_qXwEz42xyYyJ8U3BJNa0HwsCzwA63AGLsH9w2sdvbK57Q_at_mail.gmail.com>

Dan,

I can't say with much certainty right now. The trajectory Jake came up
with is the best guess right now and I do think it is very close to
reality. However, based on some witness reports and also analysis of
the 2 videos I think there could be a 5-10? tilt toward the north as
opposed to a straight E->W track. Take this with a grain of salt
though because I can not prove this right now.

Thanks,

Mike

On Tue, May 15, 2012 at 5:15 PM, Dan Miller <dannyspl12 at gmail.com> wrote:
> Mike if you will get a map the community of loomis is directly west of
> coloma to the north would you say that the trajectory line is heading
> towards loomis or north of loomis of course this line is north of mark fries
> trajectory line almost in line with highway 49 before it turns north
>
> On May 15, 2012 2:10 PM, "Mike Hankey" <mike.hankey at gmail.com> wrote:
>>
>> Dan,
>>
>> Thanks yes I did see the video. Very awesome.
>>
>> I've been able to do some work utilizing the topographic features of
>> google earth and mapping them to the pictures, but there's still a
>> good bit of uncertainty.
>>
>> With regard to the picture and video, what we really need to do is get
>> out to these 2 locations (North Reno for Lisa & South of Fresno for
>> the video) with a DSLR camera, tripod and a clear night. Then take an
>> astrophoto recreating the same field of view as was used in the
>> fireball images, but also capturing stars in the image. We could then
>> stretch out the 2 sets of photos in photoshop so that the mountain and
>> ground features line up. At that point we would have very nice AZ & EL
>> readings for both of these photos.
>>
>> I'm working with someone now who is trying to get these calibration
>> photos done, but he has limited time and it might take him a month or
>> more to get it done.
>>
>> So.. if anyone is near reno or fresno and would like to help out with
>> this effort please LMK.
>>
>> Based on the witness reports I've reviewed so far, I believe there is
>> a bit of northern tilt to the trajectory. My hope is that by
>> interviewing witnesses close to coloma, we maybe able to confirm this.
>> Any witness contacts will be put to good use, so please send them to
>> me, if you got em.
>>
>> Thanks,
>>
>> Mike
>>
>> On Tue, May 15, 2012 at 4:03 PM, Dan Miller <dannyspl12 at gmail.com> wrote:
>> > Mike did you see the video made by some kayakers near brush creek near
>> > the
>> > kern river?
>> >
>> > On May 15, 2012 12:49 PM, "Mike Hankey" <mike.hankey at gmail.com> wrote:
>> >>
>> >> Hi Folks,
>> >>
>> >> I'm going back to Coloma on Friday and staying for another week.
>> >>
>> >> While I am there I would like to interview some witnesses in Coloma
>> >> and surrounding areas. Very few witnesses from near/inside the
>> >> strewnfield submitted reports to the AMS and it would be good to get
>> >> these reports.
>> >>
>> >> When I do the interview, I usually use a tripod, inclinometer and GPS
>> >> compass. This allows me to capture the azimuth and elevation angles
>> >> for the beginning and ending points as accurately as possible. Any
>> >> data I gather I will submit to the AMS site and it will be publicly
>> >> available. I want to do these interviews in an attempt to improve the
>> >> information we have on the trajectory.
>> >>
>> >> If you have any good witness reports from people you met in the field,
>> >> who actually saw the fireball or smoke trail please consider passing
>> >> on the witnesses contact info to me off list. A name and email or
>> >> phone number for each witness would be great.
>> >>
>> >> Thanks,
>> >>
>> >> Mike
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Received on Tue 15 May 2012 05:50:21 PM PDT