I wish I had seen this in person, but it was our Ring camera that captured this event. There is even more information captured by the reflection of the object in our vehicle windows.
Video
Location
Address
Boulder, CO
Latitude
40° 0' 5.69'' N (40.001581°)
Longitude
105° 13' 53.43'' W (-105.231507°)
Elevation
1610.51001m
Time and Duration
Local Date & Time
2023-08-27 03:33 MDT
UT Date & Time
2023-08-27 09:33 UT
Duration
≈3.5s
Direction
Moving direction
From down left to up right
Descent Angle
55°
Moving
Facing azimuth
-
First azimuth
-
First elevation
55°
Last azimuth
190°
Last elevation
25°
Brightness and color
Stellar Magnitude
-10
Color
Light Blue
Concurrent Sound
Observation
Unknown
Remarks
-
Delayed Sound
Observation
Yes
Remarks
From video, sounds like a whoosh as the light source goes out of sight.
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
No
Remarks
-
Fragmentation
Observation
Yes
Remarks
It appears to break up or “skip” as it traverses low horizon.