This was quite interesting. Just for reference, I am a police officer who was on duty at the time. The explosion was quite delayed and it was loud enough it had me concerned that something was wrong until I realized it was likely from the fireball.
Location
Address
Herriman, UT
Latitude
40° 30' 59.81'' N (40.516613°)
Longitude
112° 0' 58.75'' W (-112.01632°)
Elevation
1476.043457m
Time and Duration
Local Date & Time
2020-02-27 23:50 MST
UT Date & Time
2020-02-28 06:50 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
238°
Moving
Facing azimuth
111.52°
First azimuth
167.66°
First elevation
70°
Last azimuth
76.66°
Last elevation
50°
Brightness and color
Stellar Magnitude
-15
Color
Purple, Green, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Yes
Remarks
After it broke up and disappeared we heard what sounded like a distant explosion that echoed
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
The fireball was initially one large bright object streaking through the skin. It broke into multiple pieces and burnt out as it trailed off
