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Post Info TOPIC: Dallas meteor


L

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RE: Dallas meteor
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Meteorite hunt underway in Titus County

New data shows debris from the February 1st meteorite or meteorites most likely fell in northern Titus and surrounding counties.

"a new in-flight model showed late last night that the path might have been a bit further south than the others I showed you. This means your whole county is actually in the general vicinity" - Steve Arnold.

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L

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Ed ~ As a precaution i ran an extensive check for all space junk at the time (orbiting or re-entering); and came up with nothing...



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#   METEOR_BEGIN:  LATITUDE  LONGITUDE  ALTITUDE
#                   32.1085   -99.1759    92.029
#   METEOR_dBEGIN:   0.0056     0.0016     0.357
#   METEOR_END:    LATITUDE  LONGITUDE  ALTITUDE
#                   32.7447   -96.3571    43.072
#   METEOR_dEND:     0.0111     0.0034     0.668
#   STN_VELOCITY: 10:  16.551 00:  17.642 09:  14.809
#   METEOR_VELOCITY:  16.334 +/-   1.429 km/s

Source

Ed ~ i have updated my original solution using an improved angle of 75.
[Credit to Bill Cooke + others (see their links in other posts)].

Google earth file: Dallas meteor V2.kmz (2kb, kmz)

Scatterfield at:

Latitude: 3257'30.04"N, Longitude: 9533'13.37"W

As for what the conditions are like to hunt for any meteorites there i have no idea...



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L

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Ed ~ Update: Just for the record, my original solution would have placed any scatterfield just north of Tyler, Tx.

Originalpredictedscattefieldb.jpg
Expand (234kb, 560 x 480)



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L

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Ed ~ It's worth noting i used an angle of 85 where as others have calculated the path at ~75; this translates to an error of over 40 km for the location of the scatterfield.



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L

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There was a big fireball in texas last week. Some people estimated the mass at bus sized. The meteor had a shallow entry angle, a low speed and triggered a window rattling sonic boom that was heard and felt by 100s of people. These are all positive signs that suggest a meteorite dropping fireball. The meteor was captured on 3 all sky cameras: one in Coleman TX, one in Oklahoma City Oklahoma and one in Mayhill NM.
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Ed ~ Again, different from my solution, but the force is strong in this one...

You can download his Google Earth KMZ file (.zip).



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L

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But here is a map of my estimated trajectories based on seismograph readings. The red line is the approximate trajectory from Mike Hankey using the two nearest all sky cameras. The yellow line is the estimate from the seismographs. The blue circles are radius of distance from seismographs that are calculated from the time the sonic boom arrived and are match to an estimated altitude at that part of flight, and then a simple estimation of speed of sound given the atmosphere on that day. (The trajectory doesn't actual fall perfectly tangent to the circles due to the shape of the shockwave, but its fairly close)
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Ed ~ my calculated groundtrack does not quite match this (it is still 'work in progress') but it does seem to fit the general direction.

Dallas meteor.kmz



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L

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METEOR AUSTIN



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Meteor hunters zero in on intergalactic treasure

Parked on the corner of Country Roads 3601 and 3604 in Edgewood, McCartney Taylor and Torvald Hessel review a map to plan their next move.
They're looking for space treasure - the remnants of a large meteor that streaked across the North Texas sky last week.

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Fireball over Austin, Texas - 02/01/201



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