Localizing The First Interstellar Meteor With Seismometer DataOPEN ACCESS 

Amir Siraj, Abraham Loeb

submitted for publication


“The first meter-scale interstellar meteor (IM1) was detected by US government sensors in 2014, identified as an interstellar object candidate in 2019, and confirmed by the Department of Defense (DoD) in 2022. We use data from a nearby seismometer to localize the fireball to a 1 km2 region within the 102 km2 zone allowed by the precision of the DoD-provided coordinates. The improved localization is of great importance for a forthcoming expedition to retrieve the meteor fragments.”