Meteor Events

June 3, 2023


Free Strewn Field Maps, News, and Reports

Östhammar, Sweden

1 min read
Osthammar Meteor

Östhammar, Sweden – March 16, 2021, 7:10 PM local time, cameras belonging to the Norwegian Meteor Network, detected a meteor, travelling southeast along the coast of Uppsala county in Sweden, and ending above the nuclear power plant at Forsmark. The event was small, but speed of entry was also relatively slow, so there is a slim chance of finding meteorites.

Event IDY20210316_18Z_34V
Entry Date/Time:2021-03-16 18:09:47 UTC
End Location:near Forsmark, Sweden
Reference Coordinates:60.41°N 18.09°E
Reference Altitude:29.9 km above sea level
Energy / Mass Estimate:<0.01kt TNT / < 50kg
Reference Speed:12.9 km/s
Bearing:141.3° SE
Slope:64.1° from vertical
Predicted Strewn Mass:< 18 kilograms
Event Links:Norsk Meteornettverk

Search Efforts

No known searches have been conducted for this event.

If you are searching for meteorites from this or other events in Sweden, we would encourage you to join the discussion on our Discord server here:

Strewnify Europe Facebook Group

StrewnLAB Search Area

We have calculated a predicted strewn field, based on the published trajectory from the Norwegian Meteor Network. We have fair confidence in the trajectory, and atmospheric stability was good, so the search area should be accurate. Please download and review the Google Earth files below for detailed maps of the search area.

Weather Data

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 StrewnLAB 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.

There were light winds from the north, below 10km altitude, so drift is expected to be minimal.
Like our content? Take a second to Join Team Strewnify on Patreon!
Become a patron at Patreon!

Leave a Reply

Your email address will not be published. Required fields are marked *