Fjärdhundra, Uppsala, SWEDEN – November 7, 2020, 10:27 PM local time, U.S. Government sensors detected a large meteor fireball travelling ENE at 17 km/s, ending above the town of Fjärdhundra, in the Enköping Municipality of Sweden’s Uppsala County. Total atmospheric impact energy was equivalent to 330 tonnes of TNT!
The event was also detected by the Norwegian meteor camera network, and a trajectory was published at the link below. Considering the size, speed, and angle of the fireball, it is likely there are meteorites on the ground. Travel is restricted at this time, due to the global pandemic, so the search will be limited to local efforts. Good luck to the people of Sweden, and we hope to see meteorites in the news soon!
|Entry Date/Time:||2020-11-07 21:27:04 UTC|
|Location:||Fjärdhundra, Uppsala, Sweden|
|Reference Coordinates:||59.819°N 16.846°E|
|Reference Altitude:||17.2 km above sea level|
|Energy / Mass Estimate:||0.33kt / 9700kg|
|Reference Speed:||17.0 km/s|
|Slope:||18.4° from vertical|
Norwegian Meteor Network
Video and News
There were several videos captured, mostly by the Norwegian Meteor Camera Network, that were useful in determining the trajectory of the meteor. These videos were also found on YouTube.
This was a fairly large event, but no Typically, meteoroids breaks apart during flight through the atmosphere. Much of the material evaporates in a process called ablation, leaving only small stones to find. Occaisionally, large meteor events can... have yet been found. Even in the pandemic, you can expect an event of this size to attract meteorite hunters from other parts of Europe, if they can get to the region. If you would like to join the search and future events in this region, please join the Facebook group:
StrewnLAB Search Area
Two trajectories for this meteor have been published, one from The Center for Near Earth Object Studies (CNEOS), is part of the California Institute of Technology's Jet Propulsion Laboratory. CNEOS collects data from U.S. Government sensors, and releases it for... and one from a team in Norway, and this data has been run through the StrewnLAB software to predict a search area. Please download and review the Google Earth files below for detailed maps of the search area.
The weather data below is sourced from weather balloons, and publicly available via NOAA’s Integrated Global Radiosonde Archive (IGRA). This data is downloaded and post-processed by the A computer simulation program, written by Jim Goodall. For more information, please visit the StrewnLAB Page.... algorithm, to account for changing weather patterns and weather balloon drift. The plots have altitude on the y-axis, in kilometers above sea level. The wind speed below 10km has large effect on the drift of meteorites.
My name is Jim Goodall, and I am an automotive controls engineer in the Detroit area, but my passion is physics. I started this website as a hobby, to support the global network of meteorite hunters.
Feel free to contact me, if you have any questions about the products on this website. Jim Goodall | Hartland, Michigan, USA | firstname.lastname@example.org | +1 586 709 5888