Reports Report 643s (Event 643-2019)

This report has been linked to the following event: Event 643-2019
Observer
NameMax O
Experience Level1/5
RemarksI 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
AddressLayton, UT
Latitude41° 4' 37.35'' N (41.08°)
Longitude 111° 58' 47.13'' W (-111.98°)
Elevation1349.42m
Time and Duration
Local Date & Time2019-02-07 18:14 MST
UT Date & Time2019-02-08 01:14 UT
Duration≈3.5s
Direction
Moving directionFrom up left to down right
Descent Angle177°
Moving
Facing azimuth127.86°
First azimuth121.45°
First elevation43°
Last azimuth121.34°
Last elevation23°
Brightness and color
Stellar Magnitude-16
ColorOrange, Yellow, Light Yellow, White
Concurrent Sound
ObservationUnknown
Remarks-
Delayed Sound
ObservationUnknown
Remarks-
Persistent train
ObservationYes
Duration1.5s
Length20°
RemarksGlowing train that faded evenly, tapered with the widest point where terminal flash occurred and most narrow point at start of trajectory
Terminal flash
ObservationYes
RemarksStarted 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
ObservationYes
RemarksAfter 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.