Reports Report 454sk (Event 454-2017)

Observer
Name Dowell L
Experience Level 1/5
Remarks Thing was not on fire. Front end large white ball was intact behind an apparent heat shield. Headed NE toward Lake Michigan and descended exactly like it was on "auto pilot". A "calculated" descent. Whatever it is, it is probably still intact. I saw the "meteor" really good, for as long as some fireworks are in the air. About 90 degree viewing angle, me looking straight north.
Location
Address Chicago, IL
Latitude 41° 43' 49.33'' N (41.73037°)
Longitude 87° 34' 25.83'' W (-87.573841°)
Elevation 178.378m
Time and Duration
Local Date & Time 2017-02-06 01:25 CST
UT Date & Time 2017-02-06 07:25 UT
Duration ≈7.5s
Direction
Moving direction From up left to down right
Descent Angle 95°
Moving
Facing azimuth -
First azimuth 331.78°
First elevation 45°
Last azimuth 9.86°
Last elevation 13°
Brightness and color
Stellar Magnitude -27
Color bright White ball followed by VIVID extremely GREEN VIVID extremely BLUE streaks of light
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation Yes
Duration 7s
Length 10°
Remarks it was "vapor", not "smoke". the trail was about same length as green and blue vivid streaks
Terminal flash
Observation Yes
Remarks bright WHITE flash only. impact hidden by horizon
Fragmentation
Observation No
Remarks -