Reports Report 1413h (Event 1413-2016)

Observer
Name Maxwell G
Experience Level 2/5
Remarks Reporting four years later so the finer details should be taken with a grain of salt. However, I couldn't be more sure of the location, date & time (i took a snapchat of the lake & saved it seconds later) and at its peak it was bright enough to completely illuminate the formerly pitch-black path i was walking, and the boom was loud enough that i was stunned when my roommates downtown said they didnt hear it.
Location
Address Madison, WI
Latitude 43° 4' 38.23'' N (43.077285°)
Longitude 89° 24' 11.06'' W (-89.403071°)
Elevation 260.839233m
Time and Duration
Local Date & Time 2016-04-16 20:16 CST
UT Date & Time 2016-04-17 01:16 UT
Duration ≈3.5s
Direction
Moving direction From up right to down left
Descent Angle 263°
Moving
Facing azimuth 330.11°
First azimuth 1.02°
First elevation 63°
Last azimuth 314.2°
Last elevation 59°
Brightness and color
Stellar Magnitude -17
Color Light Green
Concurrent Sound
Observation Yes
Remarks A loud boom, how i imagine a shockwave sounds. Perhaps due to the acoustics of the lake, it was preceded and followed by a resonating echo
Delayed Sound
Observation Unknown
Remarks -
Persistent train
Observation Yes
Duration 4s
Length 20°
Remarks Glowing train, initially a vivid green with white edges, faded to light green then disappeared
Terminal flash
Observation No
Remarks -
Fragmentation
Observation No
Remarks -