Reports Report 5113k (Event 5113-2017)

Name Paul T
Experience Level 1/5
Remarks -
Address Wellington, CO
Latitude 40° 43' 12.8'' N (40.720221°)
Longitude 104° 58' 15.78'' W (-104.971051°)
Elevation 1597.883m
Time and Duration
Local Date & Time 2017-12-14 20:00 MST
UT Date & Time 2017-12-15 03:00 UT
Duration ≈3.5s
Moving direction From up right to down left
Descent Angle 249°
Facing azimuth 149.63°
First azimuth 162.28°
First elevation 38°
Last azimuth 125.92°
Last elevation 25°
Brightness and color
Stellar Magnitude -11
Color Orange, Yellow
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation Unknown
Duration -
Length -
Remarks -
Terminal flash
Observation Yes
Remarks After a few seconds (just long enough for me to register it wasn't an airplane I was seeing), it briefly expanded in size to about twice the size from when I initially noticed, changing from the more yellow/slight orange color to a more orange/slight yellow color.
Observation Yes
Remarks After the flash, it broke into two (main) pieces, with an extremely brief collection of smaller debris around it (which faded almost immediately). One of the two pieces seemed to accelerate, maintaining the original trajectory for about half-to-one-second before fading. The second seemed to go at a slightly different angle (more directly downward), but at a slower rate for slightly longer (about one full second) before fading.