Event: 20180709-014030

Hundreds of eyewitnesses in the midwestern states (IA, MN, KS, MO, MI, WI, IL, IN, NE, OH) reported seeing a relatively rare Earth grazing fireball at 8:40 PM Central Daylight Time (2018 July 9 1:40 UTC). An analysis of their accounts combined with data from a video link posted to the American Meteor Society website indicates that the meteor was first seen some 61 miles above the small town of Rippey, just northwest of Des Moines. Traveling southeast at 87,000 miles per hour, the object traversed some 170 miles through the atmosphere before finally ablating 46 miles above Burlington, near the Iowa/Illinois border. The speed, end altitude, and entry angle (a very shallow 5 degrees) were such that there is no chance that this meteor produced meteorites, even though it garnered a fair amount of attention from the public.

Event Data

Event ID 20180709-014030
Date (UTC) July 9, 2018
Time (UTC) 01:40:30
AMS Event 2307-2018
Chicken Little Start Lat/Lon +41.998, -92.635
Chicken Little End Lat/Lon +41.361, -91.198
Chicken Little Altitude 101.3 km → 84.2 km ( 62.9 miles→ 52.3 miles)
Chicken Little Speed 20.2 km/s (45,200 mph)