Sat. Dec 14th, 2019

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Flensburg, Germany

3 min read
Flensburg Strewn Field

September 12, 2019 12:49:48 UTC – A large meteor came down over Europe and was detected by CNEOS as a half-kiloton event! There were clouds in the area at the time of the fall, so the local camera data was difficult to process precisely. Luckily CNEOS provided a trajectory, which ended up being fairly accurate. This event was definitely worth searching, because a meteorite was found the day after it happened!

Event Source(s):CNEOS
AMS Event 4385-2019
Arbeitskreis Meteore e.V. Forum
Date/Time:09/12/2019 12:49:48 UTC
Location:Flensburg, Germany
Reference Coordinates:54.51°N 9.18°E Google Map
Reference Altitude42 km above sea level
Energy / Mass Estimate:0.48kt / 12000kg
Entry Speed:20.0 km/s
Bearing:8.30° N
Slope:65.46° from vertical

Event Videos

The videos shown here were used to calculate the trajectory in the StrewnLAB bulletin, attached below.

© Marchal v., AMS event 4385-2019, near Borselle, Netherlands
© Holger Scheele – near Schwarbe, Germany
AMS Camera #21, near Hereford, Germany, owned by Jörg Strunk

Security camera at a shipbuilding company near Marknesse, Netherlands


Meteorite Found!

We reported on September 20th, 2019, there was a Rock Found Near Flensburg…, but details of the find were not released until later on the German forum, Arbeitskreis Meteore e.V. that there was a ~25 gram fragment located near Flensburg Airport the day after the event! The initial analysis indicates it could be carbonaceous, because the density is very low. You can also read more about the find on Karmaka Meteorites website.

Photos © Carsten Jonas – Meteorite found near Flensburg, currently suspected to be a ~25g carbonaceous chondrite, with an unusually reddish matrix. Redistributed with permission from Carsten Jonas.

Read the post from Andreas Moeller, on AKM e.V. Forum:

As some of you have certainly heard, Sirko [Molau] gave a talk at the IMC in Bollmannsruhe, about the fireball over the North Sea and also reported on a possible find. The following happened: One day after the event, someone from Flensburg reported on the fireball reporting form with a photo of a meteorite he allegedly found.  Afterwards, AKM contacted this person and examined the meteorite.  I would like to mention here that the person has requested absolute discretion and the exact location of the meteorite is kept secret. For this reason, the Kong-Arrildshoj Park, in the western part of Flensburg is indicated as the find location.  At this point, I would like to give a big thank you to Dieter Heinlein, who has worked hard to ensure that the find is scientifically studied.  Maybe Dieter will write a few more details. Currently it seems to be a very light (~ 2g / ccm) CC [Carbonaceous Chondrite] with a striking rusty color. Here are two photos from Carsten [Jonas].

As reported by Andreas Moeller, on AKM e.V. Forum, a German forum on atmospheric phenomenon [Translated from German]

Data & Reports

The latest version of the StrewnLAB Bulletin includes location and density data from the find, described above. I would like to think that the Version 3 prediction was actually correct, but the probability of finding a carbonaceous chondrite was low and the map indicated it as such. I do include this possibility in my simulations, by generating 5% of the meteorites as carbonaceous, to represent the actual probability of that meteoroid material in witnessed fall data. You can read more about my simulation methods in the StrewnLAB and Monte Carlo articles.

You will find the latest StrewnLAB Bulletin and strewn field KMZ file for the Flensburg, Germany event attached below. Notes on the latest version can always be found in the log at the end of the bulletin. Good Luck!


Old Reports

Additional data and archived reports are available at data.strewnify.com. For access, please contact Jim Goodall.

 

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