No noticeable flash or fragmentation, just faded out at the end of it's flight. I am an amateur astronomer with 25 years experience observing the skies.
Location
Address
Mesa, AZ
Latitude
33° 23' 13.42'' N (33.38706°)
Longitude
111° 43' 8.65'' W (-111.71907°)
Elevation
398.761m
Time and Duration
Local Date & Time
2018-10-27 18:34 MST
UT Date & Time
2018-10-28 01:34 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
154°
Moving
Facing azimuth
272.74°
First azimuth
248.1°
First elevation
30°
Last azimuth
254.74°
Last elevation
15°
Brightness and color
Stellar Magnitude
-6
Color
White/Green, brighter than Venus.
Concurrent Sound
Observation
No
Remarks
Did not notice sound but I was in my car at the time.