Reports Report 5113av (Event 5113-2017)

Name Kathy T
Experience Level 3/5
Remarks We were driving EB on I-70 in Colorado, and this fireball appeared to cross our windshield.
Address Downieville-Lawson-Dumont, CO
Latitude 39° 45' 58.32'' N (39.766201°)
Longitude 105° 37' 11.29'' W (-105.619804°)
Elevation 2451.567m
Time and Duration
Local Date & Time 2017-12-14 19:50 MST
UT Date & Time 2017-12-15 02:50 UT
Duration ≈3.5s
Moving direction From up right to down left
Descent Angle 260°
Facing azimuth 100°
First azimuth 120°
First elevation 40°
Last azimuth 85°
Last elevation 30°
Brightness and color
Stellar Magnitude -11
Color White
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation Unknown
Duration -
Length -
Remarks -
Terminal flash
Observation Yes
Remarks It got brighter as it crossed the sky, then seemed to explode into a much brighter light.
Observation Yes
Remarks After the apparent explosion of light, there were grey pieces and jagged lines for about a second.