It wouldn't let me upload the video, but I have it saved on my phone if I can send it some other way.
Location
Address
Denver, CO
Latitude
39° 42' 42.09'' N (39.711691°)
Longitude
104° 59' 33.77'' W (-104.992715°)
Elevation
1601.778m
Time and Duration
Local Date & Time
2017-06-18 20:45 MDT
UT Date & Time
2017-06-19 02:45 UT
Duration
≈45s
Direction
Moving direction
From up left to down right
Descent Angle
106°
Moving
Facing azimuth
90°
First azimuth
95°
First elevation
52°
Last azimuth
75°
Last elevation
26°
Brightness and color
Stellar Magnitude
-7
Color
Red
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Yes
Remarks
It sounded like a firework could have gone off, but I didn't see anything else appear in the sky. I also didn't hear any sounds prior to noticing this item in the sky.