Reports Report 643s (Event 643-2019)

Observer
Name Max O
Experience Level 1/5
Remarks I was in a car driving with my partner and roommate heading south, so I could not hear any sound and my partner witnessed the same observations. My roommate who was looking out the left window did not. The event appeared in a straight line from start to end heading down towards the mountains and began and ended in view.
Location
Address Layton, UT
Latitude 41° 4' 37.35'' N (41.077041°)
Longitude 111° 58' 47.13'' W (-111.979759°)
Elevation 1349.423828m
Time and Duration
Local Date & Time 2019-02-07 18:14 MST
UT Date & Time 2019-02-08 01:14 UT
Duration ≈3.5s
Direction
Moving direction From up left to down right
Descent Angle 177°
Moving
Facing azimuth 127.86°
First azimuth 121.45°
First elevation 43°
Last azimuth 121.34°
Last elevation 23°
Brightness and color
Stellar Magnitude -16
Color Orange, Yellow, Light Yellow, White
Concurrent Sound
Observation Unknown
Remarks -
Delayed Sound
Observation Unknown
Remarks -
Persistent train
Observation Yes
Duration 1.5s
Length 20°
Remarks Glowing train that faded evenly, tapered with the widest point where terminal flash occurred and most narrow point at start of trajectory
Terminal flash
Observation Yes
Remarks Started white and turned to a very bright orange with yellow at the center, flaring out in all directions in an uneven pattern and appearing like a fireball, before turning light yellow and back to white evenly.
Fragmentation
Observation Yes
Remarks After the flash, two or three bright white fragments split from the blast and flowed downward, angled in different directions from the flash (one straight down and very slightly to the left, one to the left at about a 45 degree angle, and a tiny one somewhere to the right), and faded very quickly. Could be described like sparks from liquid metal.