It looked to be descending at about a 60 Deg. Angle from right to left. I first noticed it at about 30 deg. above the horizon, and it took about 30 seconds before it was no longer visible a few degrees above the horizon.
Location
Address
Arvada, CO
Latitude
39° 51' 8.97'' N (39.852493°)
Longitude
105° 11' 51.5'' W (-105.197639°)
Elevation
1785.888794m
Time and Duration
Local Date & Time
2014-09-02 22:30 MDT
UT Date & Time
2014-09-03 04:30 UT
Duration
≈20s
Direction
Moving direction
From up right to down left
Descent Angle
225°
Moving
Facing azimuth
7.91°
First azimuth
35.01°
First elevation
36°
Last azimuth
8.62°
Last elevation
1°
Brightness and color
Stellar Magnitude
-7
Color
White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
2s
Length
10°
Remarks
Red sparkling train narrow at the front, wide near the front then gradually tapering off to a fine tip
