Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Laura @ CopperWired Studios via Meteorite-list]

Thank you to all of the great contributors that aid the in the recovery
methodology thru their true diligence and love of the science!  Without
their help, this would be a near impossible task! Congratulations to all
involved!

Best Regards,
Laura Atkins
IMCA #4542

-Original Message-
From: Meteorite-list [mailto:meteorite-list-boun...@meteoritecentral.com] On
Behalf Of Matson, Rob D. via Meteorite-list
Sent: Thursday, February 25, 2016 1:22 PM
To: meteorite-list@meteoritecentral.com
Subject: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

Hi All,

Some further information about the circumstances leading to the successful
meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves
special notice since often the first indication we have of a new potential
fall is the AMS website that he maintains. Marc Fries was the first to spot
the nice Lubbock radar returns for this fall -- less than 18 hours after the
event! I compiled those, and additional returns I found in the Amarillo
radar, and then went on a search for seismic signatures or videos that could
be used to pin down the time of the event. One Youtube video surfaced right
away, taken from a dashcam on highway 183 near Euless, Texas:

https://www.youtube.com/watch?v=qMkeVGSlV7o

Pat Branch did some quick work measuring terminus angles, concluding that
the vector lined up perfectly with the radar returns east of Lubbock. I soon
located two more videos, one from some still undetermined location near
Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:

https://www.youtube.com/watch?v=YPDoZYfH4ko

and another from a dashcam near Edmond, OK, north of Oklahoma City:

https://www.youtube.com/watch?v=qPb7jrtX4p0

Pat Branch was successful in contacting the driver of this car who provided
his exact location. There are numerous landmarks in this video that allowed
me to determine reasonably accurate starting and ending directions.
Triangulating this video with the one from Euless led to a fairly steep
fireball entry angle and a nearly due west trajectory.

However, upper atmospheric winds were relatively strong (over 100 mph to the
southeast,) and not surprisingly this is the trend we see in the radar
returns.
All that remained was to get an accurate time for the event so that
meteorite masses could be estimated (based on the time delay between the
fall and when various radar volumes were scanned). Unfortunately, none of
the three videos above has a sufficiently accurate timetag.

But here again Pat came to the rescue. Rob Ferguson (the provider of the
Edmond, OK dashcam) emailed Pat telling him that the fireball was also
captured by the Oklahoma Dept. of Emergency Management's tower cam, and that
a friend of his (Putnam Reiter) works there and pulled the video for him.
This has a great, unobstructed view of the event, being up on a tower some
200 feet! Most importantly, it has a very accurate timetag, being regularly
synced with a NTP server. So we now knew the beginning of the event was at
3:44:08 UT (21:44:08 CST). I determined that the earliest radar returns of
the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds after the
beginning of dark flight (~21:44:11 UT). This was how we knew meteorites
were on the ground for sure, since dust or even small pebbles can't fall
that far in less than 2 minutes.

Anyway, this is getting a bit long and I want to get these details out there
sooner rather than later in order to credit some of the important players
that made this all happen. Hopefully it gives you a sense of the amount of
detective work goes into chasing down these falls, and how much of a team
effort it is.

Cheers!
Rob

__

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016

[Michael Mulgrew via Meteorite-list]

Great news, congrats to all who made it happen!

Michael in so. Cal.

On Thu, Feb 25, 2016 at 1:27 AM, Rob Matson via Meteorite-list
 wrote:
> [Resending from a different account since the first attempt has not
> shown up. Apologies if this turns out to be a repeat...]
>
> Hi All,
>
> Just want to report that the west Texas bolide that occurred one week
> ago on the evening of 17 February 2016 is officially a fall: the second
> successful radar-enabled recovery of 2016 (following Osceola, Florida)
> as well as Texas' second Doppler-cued recovery (the first of course
> being Ash Creek almost exactly seven years ago). Congratulations to
> the persistent meteorite recovery team who walked the many miles to
> make this another success story! --Rob
>
>
> __
>
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Doug Ross via Meteorite-list]

What a remarkable story! I’m so excited to see the technology coming together 
to produce results like this, and very grateful to Rob and the many volunteers 
who selflessly contribute so much time and expertise to the effort. I can 
imagine that the increasing proliferation of dashcams is likely to lead to more 
and more recoveries in the future. Congratulations to all involved!

Doug Ross



> On Thu, 2/25/16, Matson, Rob D. via Meteorite-list 
> <meteorite-list@meteoritecentral.com> wrote:
> 
> Subject: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details
> To: "meteorite-list@meteoritecentral.com" 
> <meteorite-list@meteoritecentral.com>
> Date: Thursday, February 25, 2016, 10:22 AM
> 
> Hi All,
> 
> Some further information about the circumstances leading to the successful
> meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves 
> special
> notice since often the first indication we have of a new potential fall is the
> AMS website that he maintains. Marc Fries was the first to spot the nice
> Lubbock radar returns for this fall -- less than 18 hours after the event! I
> compiled those, and additional returns I found in the Amarillo radar, and
> then went on a search for seismic signatures or videos that could be used
> to pin down the time of the event. One Youtube video surfaced right away,
> taken from a dashcam on highway 183 near Euless, Texas:
> 
> https://www.youtube.com/watch?v=qMkeVGSlV7o
> 
> Pat Branch did some quick work measuring terminus angles, concluding that
> the vector lined up perfectly with the radar returns east of Lubbock. I soon
> located two more videos, one from some still undetermined location near
> Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:
> 
> https://www.youtube.com/watch?v=YPDoZYfH4ko
> 
> and another from a dashcam near Edmond, OK, north of Oklahoma City:
> 
> https://www.youtube.com/watch?v=qPb7jrtX4p0
> 
> Pat Branch was successful in contacting the driver of this car who provided
> his exact location. There are numerous landmarks in this video that allowed
> me to determine reasonably accurate starting and ending directions. 
> Triangulating
> this video with the one from Euless led to a fairly steep fireball entry 
> angle and
> a nearly due west trajectory.
> 
> However, upper atmospheric winds were relatively strong (over 100 mph to
> the southeast,) and not surprisingly this is the trend we see in the radar 
> returns.
> All that remained was to get an accurate time for the event so that meteorite
> masses could be estimated (based on the time delay between the fall and
> when various radar volumes were scanned). Unfortunately, none of the
> three videos above has a sufficiently accurate timetag.
> 
> But here again Pat came to the rescue. Rob Ferguson (the provider of the
> Edmond, OK dashcam) emailed Pat telling him that the fireball was also
> captured by the Oklahoma Dept. of Emergency Management's tower cam,
> and that a friend of his (Putnam Reiter) works there and pulled the video for
> him. This has a great, unobstructed view of the event, being up on a tower
> some 200 feet! Most importantly, it has a very accurate timetag, being
> regularly synced with a NTP server. So we now knew the beginning of the
> event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
> returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
> after the beginning of dark flight (~21:44:11 UT). This was how we knew
> meteorites were on the ground for sure, since dust or even small pebbles
> can't fall that far in less than 2 minutes.
> 
> Anyway, this is getting a bit long and I want to get these details out
> there sooner rather than later in order to credit some of the important
> players that made this all happen. Hopefully it gives you a sense of the
> amount of detective work goes into chasing down these falls, and how
> much of a team effort it is.
> 
> Cheers!
> Rob
__

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Robert Verish via Meteorite-list]

Hello Rob, 

You could not have explained anymore succinctly everyone's contribution to this 
most successful recovery effort, 
without the risk of leaving out someone, or omitting a significant plot-turn to 
this remarkable story. 

I wonder, when this story hits the newswires, if the general public will 
realize how much of a "volunteer" effort 
was contributed by everyone that was involved in this recovery, or will they 
erroneously assume that the government 
pays all of these people to get this job done?  Of course, a tip-of-the-hat to 
the NOAA NEXRAD, but 
other than that, the general public may be surprised to learn that none of 
their tax-dollars were spent 
on the recovery of this new American meteorite. 

Also, a tip-of-the-hat to all of the property-owners that gave permission to 
allow their land to be 
searched by the all-volunteer recovery team, otherwise very little chance of 
finding the meteorite. 

Looking forward to watching this story continue to unfold.
Again thanks to all involved,
Bob V. 
  

On Thu, 2/25/16, Matson, Rob D. via Meteorite-list 
<meteorite-list@meteoritecentral.com> wrote:

 Subject: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details
 To: "meteorite-list@meteoritecentral.com" <meteorite-list@meteoritecentral.com>
 Date: Thursday, February 25, 2016, 10:22 AM
 
 Hi All,

Some further information about the circumstances leading to the successful
meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves special
notice since often the first indication we have of a new potential fall is the
AMS website that he maintains. Marc Fries was the first to spot the nice
Lubbock radar returns for this fall -- less than 18 hours after the event! I
compiled those, and additional returns I found in the Amarillo radar, and
then went on a search for seismic signatures or videos that could be used
to pin down the time of the event. One Youtube video surfaced right away,
taken from a dashcam on highway 183 near Euless, Texas:

https://www.youtube.com/watch?v=qMkeVGSlV7o

Pat Branch did some quick work measuring terminus angles, concluding that
the vector lined up perfectly with the radar returns east of Lubbock. I soon
located two more videos, one from some still undetermined location near
Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:

https://www.youtube.com/watch?v=YPDoZYfH4ko

and another from a dashcam near Edmond, OK, north of Oklahoma City:

https://www.youtube.com/watch?v=qPb7jrtX4p0

Pat Branch was successful in contacting the driver of this car who provided
his exact location. There are numerous landmarks in this video that allowed
me to determine reasonably accurate starting and ending directions. 
Triangulating
this video with the one from Euless led to a fairly steep fireball entry angle 
and
a nearly due west trajectory.

However, upper atmospheric winds were relatively strong (over 100 mph to
the southeast,) and not surprisingly this is the trend we see in the radar 
returns.
All that remained was to get an accurate time for the event so that meteorite
masses could be estimated (based on the time delay between the fall and
when various radar volumes were scanned). Unfortunately, none of the
three videos above has a sufficiently accurate timetag.

But here again Pat came to the rescue. Rob Ferguson (the provider of the
Edmond, OK dashcam) emailed Pat telling him that the fireball was also
captured by the Oklahoma Dept. of Emergency Management's tower cam,
and that a friend of his (Putnam Reiter) works there and pulled the video for
him. This has a great, unobstructed view of the event, being up on a tower
some 200 feet! Most importantly, it has a very accurate timetag, being
regularly synced with a NTP server. So we now knew the beginning of the
event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
after the beginning of dark flight (~21:44:11 UT). This was how we knew
meteorites were on the ground for sure, since dust or even small pebbles
can't fall that far in less than 2 minutes.

Anyway, this is getting a bit long and I want to get these details out
there sooner rather than later in order to credit some of the important
players that made this all happen. Hopefully it gives you a sense of the
amount of detective work goes into chasing down these falls, and how
much of a team effort it is.

Cheers!
Rob

__

 
__

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Larry Atkins via Meteorite-list]

Thanks for the behind the scenes details Rob.


 That's an amazing account of what it takes to pull this off. I thank you guys 
for what you do.
 
Sincerely,
Larry Atkins



-Original Message-
From: Matson, Rob D. via Meteorite-list <meteorite-list@meteoritecentral.com>
To: meteorite-list <meteorite-list@meteoritecentral.com>
Sent: Thu, Feb 25, 2016 11:22 am
Subject: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

Hi All,

Some further information about the circumstances leading to the successful
meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves special
notice since often the first indication we have of a new potential fall is the
AMS website that he maintains. Marc Fries was the first to spot the nice
Lubbock radar returns for this fall -- less than 18 hours after the event! I
compiled those, and additional returns I found in the Amarillo radar, and
then went on a search for seismic signatures or videos that could be used
to pin down the time of the event. One Youtube video surfaced right away,
taken from a dashcam on highway 183 near Euless, Texas:

https://www.youtube.com/watch?v=qMkeVGSlV7o

Pat Branch did some quick work measuring terminus angles, concluding that
the vector lined up perfectly with the radar returns east of Lubbock. I soon
located two more videos, one from some still undetermined location near
Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:

https://www.youtube.com/watch?v=YPDoZYfH4ko

and another from a dashcam near Edmond, OK, north of Oklahoma City:

https://www.youtube.com/watch?v=qPb7jrtX4p0

Pat Branch was successful in contacting the driver of this car who provided
his exact location. There are numerous landmarks in this video that allowed
me to determine reasonably accurate starting and ending directions. 
Triangulating
this video with the one from Euless led to a fairly steep fireball entry angle 
and
a nearly due west trajectory.

However, upper atmospheric winds were relatively strong (over 100 mph to
the southeast,) and not surprisingly this is the trend we see in the radar 
returns.
All that remained was to get an accurate time for the event so that meteorite
masses could be estimated (based on the time delay between the fall and
when various radar volumes were scanned). Unfortunately, none of the
three videos above has a sufficiently accurate timetag.

But here again Pat came to the rescue. Rob Ferguson (the provider of the
Edmond, OK dashcam) emailed Pat telling him that the fireball was also
captured by the Oklahoma Dept. of Emergency Management's tower cam,
and that a friend of his (Putnam Reiter) works there and pulled the video for
him. This has a great, unobstructed view of the event, being up on a tower
some 200 feet! Most importantly, it has a very accurate timetag, being
regularly synced with a NTP server. So we now knew the beginning of the
event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
after the beginning of dark flight (~21:44:11 UT). This was how we knew
meteorites were on the ground for sure, since dust or even small pebbles
can't fall that far in less than 2 minutes.

Anyway, this is getting a bit long and I want to get these details out
there sooner rather than later in order to credit some of the important
players that made this all happen. Hopefully it gives you a sense of the
amount of detective work goes into chasing down these falls, and how
much of a team effort it is.

Cheers!
Rob

__

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Larry Atkins via Meteorite-list]

Thanks for the behind the scenes details Rob.

 That's an amazing account of what it takes to pull this off. I thank you guys 
for what you do.
 
Sincerely,
Larry Atkins




Sincerely,
Larry Atkins
 
IMCA # 1941
Ebay alienrockfarm
 


-Original Message-
From: Matson, Rob D. via Meteorite-list <meteorite-list@meteoritecentral.com>
To: meteorite-list <meteorite-list@meteoritecentral.com>
Sent: Thu, Feb 25, 2016 11:22 am
Subject: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

Hi All,

Some further information about the circumstances leading to the successful
meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves special
notice since often the first indication we have of a new potential fall is the
AMS website that he maintains. Marc Fries was the first to spot the nice
Lubbock radar returns for this fall -- less than 18 hours after the event! I
compiled those, and additional returns I found in the Amarillo radar, and
then went on a search for seismic signatures or videos that could be used
to pin down the time of the event. One Youtube video surfaced right away,
taken from a dashcam on highway 183 near Euless, Texas:

https://www.youtube.com/watch?v=qMkeVGSlV7o

Pat Branch did some quick work measuring terminus angles, concluding that
the vector lined up perfectly with the radar returns east of Lubbock. I soon
located two more videos, one from some still undetermined location near
Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:

https://www.youtube.com/watch?v=YPDoZYfH4ko

and another from a dashcam near Edmond, OK, north of Oklahoma City:

https://www.youtube.com/watch?v=qPb7jrtX4p0

Pat Branch was successful in contacting the driver of this car who provided
his exact location. There are numerous landmarks in this video that allowed
me to determine reasonably accurate starting and ending directions. 
Triangulating
this video with the one from Euless led to a fairly steep fireball entry angle 
and
a nearly due west trajectory.

However, upper atmospheric winds were relatively strong (over 100 mph to
the southeast,) and not surprisingly this is the trend we see in the radar 
returns.
All that remained was to get an accurate time for the event so that meteorite
masses could be estimated (based on the time delay between the fall and
when various radar volumes were scanned). Unfortunately, none of the
three videos above has a sufficiently accurate timetag.

But here again Pat came to the rescue. Rob Ferguson (the provider of the
Edmond, OK dashcam) emailed Pat telling him that the fireball was also
captured by the Oklahoma Dept. of Emergency Management's tower cam,
and that a friend of his (Putnam Reiter) works there and pulled the video for
him. This has a great, unobstructed view of the event, being up on a tower
some 200 feet! Most importantly, it has a very accurate timetag, being
regularly synced with a NTP server. So we now knew the beginning of the
event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
after the beginning of dark flight (~21:44:11 UT). This was how we knew
meteorites were on the ground for sure, since dust or even small pebbles
can't fall that far in less than 2 minutes.

Anyway, this is getting a bit long and I want to get these details out
there sooner rather than later in order to credit some of the important
players that made this all happen. Hopefully it gives you a sense of the
amount of detective work goes into chasing down these falls, and how
much of a team effort it is.

Cheers!
Rob

__

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Archives at http://www.meteorite-list-archives.com
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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[J Sinclair via Meteorite-list]

Incredible report.
The new science of meteorite recovery is amazing. The time and effort
of all is greatly appreciated.
Thanks Rob and to everyone else that are taking part in these great recoveries.

John


On Thu, Feb 25, 2016 at 1:22 PM, Matson, Rob D. via Meteorite-list
 wrote:
> Hi All,
>
> Some further information about the circumstances leading to the successful
> meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves 
> special
> notice since often the first indication we have of a new potential fall is the
> AMS website that he maintains. Marc Fries was the first to spot the nice
> Lubbock radar returns for this fall -- less than 18 hours after the event! I
> compiled those, and additional returns I found in the Amarillo radar, and
> then went on a search for seismic signatures or videos that could be used
> to pin down the time of the event. One Youtube video surfaced right away,
> taken from a dashcam on highway 183 near Euless, Texas:
>
> https://www.youtube.com/watch?v=qMkeVGSlV7o
>
> Pat Branch did some quick work measuring terminus angles, concluding that
> the vector lined up perfectly with the radar returns east of Lubbock. I soon
> located two more videos, one from some still undetermined location near
> Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:
>
> https://www.youtube.com/watch?v=YPDoZYfH4ko
>
> and another from a dashcam near Edmond, OK, north of Oklahoma City:
>
> https://www.youtube.com/watch?v=qPb7jrtX4p0
>
> Pat Branch was successful in contacting the driver of this car who provided
> his exact location. There are numerous landmarks in this video that allowed
> me to determine reasonably accurate starting and ending directions. 
> Triangulating
> this video with the one from Euless led to a fairly steep fireball entry 
> angle and
> a nearly due west trajectory.
>
> However, upper atmospheric winds were relatively strong (over 100 mph to
> the southeast,) and not surprisingly this is the trend we see in the radar 
> returns.
> All that remained was to get an accurate time for the event so that meteorite
> masses could be estimated (based on the time delay between the fall and
> when various radar volumes were scanned). Unfortunately, none of the
> three videos above has a sufficiently accurate timetag.
>
> But here again Pat came to the rescue. Rob Ferguson (the provider of the
> Edmond, OK dashcam) emailed Pat telling him that the fireball was also
> captured by the Oklahoma Dept. of Emergency Management's tower cam,
> and that a friend of his (Putnam Reiter) works there and pulled the video for
> him. This has a great, unobstructed view of the event, being up on a tower
> some 200 feet! Most importantly, it has a very accurate timetag, being
> regularly synced with a NTP server. So we now knew the beginning of the
> event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
> returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
> after the beginning of dark flight (~21:44:11 UT). This was how we knew
> meteorites were on the ground for sure, since dust or even small pebbles
> can't fall that far in less than 2 minutes.
>
> Anyway, this is getting a bit long and I want to get these details out
> there sooner rather than later in order to credit some of the important
> players that made this all happen. Hopefully it gives you a sense of the
> amount of detective work goes into chasing down these falls, and how
> much of a team effort it is.
>
> Cheers!
> Rob
>
> __
>
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
> Meteorite-list@meteoritecentral.com
> https://pairlist3.pair.net/mailman/listinfo/meteorite-list
__

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Darryl Pitt via Meteorite-list]

Hi, 

Thank you so much for this email.  I LOVE THIS. 

Congratulations to all involved and with especial appreciation to those whose 
efforts helped to make this possible.   Bravo!



On Feb 25, 2016, at 1:22 PM, Matson, Rob D. via Meteorite-list 
 wrote:

> Hi All,
> 
> Some further information about the circumstances leading to the successful
> meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves 
> special
> notice since often the first indication we have of a new potential fall is the
> AMS website that he maintains. Marc Fries was the first to spot the nice
> Lubbock radar returns for this fall -- less than 18 hours after the event! I
> compiled those, and additional returns I found in the Amarillo radar, and
> then went on a search for seismic signatures or videos that could be used
> to pin down the time of the event. One Youtube video surfaced right away,
> taken from a dashcam on highway 183 near Euless, Texas:
> 
> https://www.youtube.com/watch?v=qMkeVGSlV7o
> 
> Pat Branch did some quick work measuring terminus angles, concluding that
> the vector lined up perfectly with the radar returns east of Lubbock. I soon
> located two more videos, one from some still undetermined location near
> Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:
> 
> https://www.youtube.com/watch?v=YPDoZYfH4ko
> 
> and another from a dashcam near Edmond, OK, north of Oklahoma City:
> 
> https://www.youtube.com/watch?v=qPb7jrtX4p0
> 
> Pat Branch was successful in contacting the driver of this car who provided
> his exact location. There are numerous landmarks in this video that allowed
> me to determine reasonably accurate starting and ending directions. 
> Triangulating
> this video with the one from Euless led to a fairly steep fireball entry 
> angle and
> a nearly due west trajectory.
> 
> However, upper atmospheric winds were relatively strong (over 100 mph to
> the southeast,) and not surprisingly this is the trend we see in the radar 
> returns.
> All that remained was to get an accurate time for the event so that meteorite
> masses could be estimated (based on the time delay between the fall and
> when various radar volumes were scanned). Unfortunately, none of the
> three videos above has a sufficiently accurate timetag.
> 
> But here again Pat came to the rescue. Rob Ferguson (the provider of the
> Edmond, OK dashcam) emailed Pat telling him that the fireball was also
> captured by the Oklahoma Dept. of Emergency Management's tower cam,
> and that a friend of his (Putnam Reiter) works there and pulled the video for
> him. This has a great, unobstructed view of the event, being up on a tower
> some 200 feet! Most importantly, it has a very accurate timetag, being
> regularly synced with a NTP server. So we now knew the beginning of the
> event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
> returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
> after the beginning of dark flight (~21:44:11 UT). This was how we knew
> meteorites were on the ground for sure, since dust or even small pebbles
> can't fall that far in less than 2 minutes.
> 
> Anyway, this is getting a bit long and I want to get these details out
> there sooner rather than later in order to credit some of the important
> players that made this all happen. Hopefully it gives you a sense of the
> amount of detective work goes into chasing down these falls, and how
> much of a team effort it is.
> 
> Cheers!
> Rob
> 
> __
> 
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
> Archives at http://www.meteorite-list-archives.com
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[meteorite-list] 2nd recovered U.S. fall of 2016 - more details

[Matson, Rob D. via Meteorite-list]

Hi All,

Some further information about the circumstances leading to the successful
meteorite recovery east of Lubbock, TX. First off, Mike Hankey deserves special
notice since often the first indication we have of a new potential fall is the
AMS website that he maintains. Marc Fries was the first to spot the nice
Lubbock radar returns for this fall -- less than 18 hours after the event! I
compiled those, and additional returns I found in the Amarillo radar, and
then went on a search for seismic signatures or videos that could be used
to pin down the time of the event. One Youtube video surfaced right away,
taken from a dashcam on highway 183 near Euless, Texas:

https://www.youtube.com/watch?v=qMkeVGSlV7o

Pat Branch did some quick work measuring terminus angles, concluding that
the vector lined up perfectly with the radar returns east of Lubbock. I soon
located two more videos, one from some still undetermined location near
Augusta, Kansas (east of Wichita) and some 580 km (!) from the fall:

https://www.youtube.com/watch?v=YPDoZYfH4ko

and another from a dashcam near Edmond, OK, north of Oklahoma City:

https://www.youtube.com/watch?v=qPb7jrtX4p0

Pat Branch was successful in contacting the driver of this car who provided
his exact location. There are numerous landmarks in this video that allowed
me to determine reasonably accurate starting and ending directions. 
Triangulating
this video with the one from Euless led to a fairly steep fireball entry angle 
and
a nearly due west trajectory.

However, upper atmospheric winds were relatively strong (over 100 mph to
the southeast,) and not surprisingly this is the trend we see in the radar 
returns.
All that remained was to get an accurate time for the event so that meteorite
masses could be estimated (based on the time delay between the fall and
when various radar volumes were scanned). Unfortunately, none of the
three videos above has a sufficiently accurate timetag.

But here again Pat came to the rescue. Rob Ferguson (the provider of the
Edmond, OK dashcam) emailed Pat telling him that the fireball was also
captured by the Oklahoma Dept. of Emergency Management's tower cam,
and that a friend of his (Putnam Reiter) works there and pulled the video for
him. This has a great, unobstructed view of the event, being up on a tower
some 200 feet! Most importantly, it has a very accurate timetag, being
regularly synced with a NTP server. So we now knew the beginning of the
event was at 3:44:08 UT (21:44:08 CST). I determined that the earliest radar
returns of the fall were from Amarillo NEXRAD at 3:45:49.7, just 99 seconds
after the beginning of dark flight (~21:44:11 UT). This was how we knew
meteorites were on the ground for sure, since dust or even small pebbles
can't fall that far in less than 2 minutes.

Anyway, this is getting a bit long and I want to get these details out
there sooner rather than later in order to credit some of the important
players that made this all happen. Hopefully it gives you a sense of the
amount of detective work goes into chasing down these falls, and how
much of a team effort it is.

Cheers!
Rob

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Re: [meteorite-list] 2nd recovered U.S. fall of 2016

[Frank Carroll via Meteorite-list]

Was this the fall west of Lubbock?
Is there a city close by?
Thanks 
Frank Carroll
Houston Texas 

Sent from my iPhone

> On Feb 25, 2016, at 8:48 AM, Ruben Garcia via Meteorite-list 
>  wrote:
> 
> Congratulations, on the find!
> 
> Great Job.
> 
> On Thu, Feb 25, 2016 at 2:27 AM, Rob Matson via Meteorite-list
>  wrote:
>> [Resending from a different account since the first attempt has not
>> shown up. Apologies if this turns out to be a repeat...]
>> 
>> Hi All,
>> 
>> Just want to report that the west Texas bolide that occurred one week
>> ago on the evening of 17 February 2016 is officially a fall: the second
>> successful radar-enabled recovery of 2016 (following Osceola, Florida)
>> as well as Texas' second Doppler-cued recovery (the first of course
>> being Ash Creek almost exactly seven years ago). Congratulations to
>> the persistent meteorite recovery team who walked the many miles to
>> make this another success story! --Rob
>> 
>> 
>> __
>> 
>> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
>> Archives at http://www.meteorite-list-archives.com
>> Meteorite-list mailing list
>> Meteorite-list@meteoritecentral.com
>> https://pairlist3.pair.net/mailman/listinfo/meteorite-list
> 
> 
> 
> -- 
> Rock On!
> 
> Ruben Garcia
> http://www.MrMeteorite.com
> __
> 
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
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Re: [meteorite-list] 2nd recovered U.S. fall of 2016

[MexicoDoug via Meteorite-list]

Congratulations both to Rob and to the intrepid discoverer(s) of this event!  
Can't wait till the exciting story is further revealed.  I have a hunch for no 
particular reason that this meteorite and the circumstances of recovery will be 
extra-special (as all are)!  Cheers,
Doug


-Original Message-
From: Rob Matson via Meteorite-list <meteorite-list@meteoritecentral.com>
To: 'meteorite-list' <meteorite-list@meteoritecentral.com>
Sent: Thu, Feb 25, 2016 4:27 am
Subject: [meteorite-list] 2nd recovered U.S. fall of 2016

[Resending from a different account since the first attempt has not
shown up. Apologies if this turns out to be a repeat...]

Hi All,

Just want to report that the west Texas bolide that occurred one week
ago on the evening of 17 February 2016 is officially a fall: the second
successful radar-enabled recovery of 2016 (following Osceola, Florida)
as well as Texas' second Doppler-cued recovery (the first of course
being Ash Creek almost exactly seven years ago). Congratulations to
the persistent meteorite recovery team who walked the many miles to
make this another success story! --Rob


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Re: [meteorite-list] 2nd recovered U.S. fall of 2016

[Ruben Garcia via Meteorite-list]

Congratulations, on the find!

Great Job.

On Thu, Feb 25, 2016 at 2:27 AM, Rob Matson via Meteorite-list
 wrote:
> [Resending from a different account since the first attempt has not
> shown up. Apologies if this turns out to be a repeat...]
>
> Hi All,
>
> Just want to report that the west Texas bolide that occurred one week
> ago on the evening of 17 February 2016 is officially a fall: the second
> successful radar-enabled recovery of 2016 (following Osceola, Florida)
> as well as Texas' second Doppler-cued recovery (the first of course
> being Ash Creek almost exactly seven years ago). Congratulations to
> the persistent meteorite recovery team who walked the many miles to
> make this another success story! --Rob
>
>
> __
>
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the 
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
> Meteorite-list@meteoritecentral.com
> https://pairlist3.pair.net/mailman/listinfo/meteorite-list



-- 
Rock On!

Ruben Garcia
http://www.MrMeteorite.com
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Re: [meteorite-list] 2nd recovered U.S. fall of 2016

[Larry Atkins via Meteorite-list]

That's some great news. Congratulations to the finder/s! I can't wait to see 
what type it is.

Sincerely,
Larry Atkins
 
IMCA # 1941
Ebay alienrockfarm
 


-Original Message-
From: Rob Matson via Meteorite-list <meteorite-list@meteoritecentral.com>
To: 'meteorite-list' <meteorite-list@meteoritecentral.com>
Sent: Thu, Feb 25, 2016 2:27 am
Subject: [meteorite-list] 2nd recovered U.S. fall of 2016

[Resending from a different account since the first attempt has not
shown up. Apologies if this turns out to be a repeat...]

Hi All,

Just want to report that the west Texas bolide that occurred one week
ago on the evening of 17 February 2016 is officially a fall: the second
successful radar-enabled recovery of 2016 (following Osceola, Florida)
as well as Texas' second Doppler-cued recovery (the first of course
being Ash Creek almost exactly seven years ago). Congratulations to
the persistent meteorite recovery team who walked the many miles to
make this another success story! --Rob


__

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[meteorite-list] 2nd recovered U.S. fall of 2016

[Rob Matson via Meteorite-list]

[Resending from a different account since the first attempt has not
shown up. Apologies if this turns out to be a repeat...]

Hi All,

Just want to report that the west Texas bolide that occurred one week
ago on the evening of 17 February 2016 is officially a fall: the second
successful radar-enabled recovery of 2016 (following Osceola, Florida)
as well as Texas' second Doppler-cued recovery (the first of course
being Ash Creek almost exactly seven years ago). Congratulations to
the persistent meteorite recovery team who walked the many miles to
make this another success story! --Rob


__

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