Nearby Strewn Fields

December 10, 2022


Free Strewn Field Maps, News, and Reports

Willcox, Arizona, USA

3 min read
3D path of meteor

Willcox, Arizona, USA – January 26, 2022, 7:04 AM local time, cameras belonging to the NASA ASGARD network detected a small meteor fireball, heading northwest, near Arizona’s border with Mexico.

This was a small fireball, and chances are low that sizeable material reached the ground. However, the speed was relatively slow and there was a decent infrasound signature detected on a seismic station 70 km away. Refer to the sections below for details and search maps, which you can download to Google Earth.

Entry Date/Time:2022-01-27 2:04:40 UTC
End Location:35 km SE of Willcox, Arizona
Endpoint Coordinates:32.0606°N, -109.5201°W
Reference Altitude:32.5 km above sea level
Energy / Mass Estimate:low / < 1 kg
Reference Speed:13.1 km/s
Bearing:311° NW
Slope:35° from vertical
Estimated Strewn Mass:< 1 kg
Event Links:ASGARD Event 20220127_020440D

Search Efforts

This was a small event, so if any material survived, it would likely be less than 10 grams in size. We think it is worth searching, because of the infrasound signature detected on seismic station AE 319A in Douglas, AZ. The desert is a great place to search for meteorites, and they are often well-preserved here for many years.

Wide open spaces at the search area. Google Earth community photo credit: Theo Trucker

If you would like to search for for meteorites from this or future events in this region, please join the Discord or Facebook group.

Join the Western USA Facebook Group

StrewnLAB Search Area

A trajectory has been estimated from the videos, and this data has been run through the StrewnLAB software to predict a search area, which matches the Doppler data for lighter fragements. Please download and review the Google Earth files below for detailed maps of the search area.

  • strewn field map
  • strewn field map

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.

Moderate wind from the southwest

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