Reports Report 6891j (Event 6891-2019)

Observer
Name Eric H
Experience Level 1/5
Remarks My cousin was driving me and my brother north on Highway 85 when we saw this flash of green light. I'd say the location is accurate to +/- a mile N-S along Highway 85. Similarly, I'd say the time is accurate to +/- ten minutes.
Location
Address Williston, ND
Latitude 48° 22' 53.59'' N (48.381554°)
Longitude 103° 37' 28.77'' W (-103.624657°)
Elevation 592.454102m
Time and Duration
Local Date & Time 2019-12-28 23:40 CST
UT Date & Time 2019-12-29 05:40 UT
Duration ≈3.5s
Direction
Moving direction From up to down
Descent Angle -
Moving
Facing azimuth -
First azimuth 345°
First elevation 25°
Last azimuth 345°
Last elevation 15°
Brightness and color
Stellar Magnitude -9
Color Green
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation Yes
Remarks At first I thought it was a "shooting star," but it lasted too long, plus it terminated with a bright flash of green, and vanished. (The magnitude I reported previously was based on this terminal flash.)
Fragmentation
Observation No
Remarks -