This is by far the brightest and longest fireball I have witnessed. It reminded me of the Chelyabinsk event (though not nearly as large) because it was so bright against a twilight sky (the sun had just set a couple minutes before). I totally expected to hear a sonic boom but there was a band playing very loudly nearby and if there was a sonic boom, we wouldn't have been able to hear it.
Location
Address
Columbus, OH
Latitude
40° 0' 24.76'' N (40.006879°)
Longitude
83° 1' 1.26'' W (-83.017018°)
Elevation
224.59198m
Time and Duration
Local Date & Time
2019-10-05 19:10 EDT
UT Date & Time
2019-10-05 23:10 UT
Duration
≈7.5s
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
270°
First azimuth
260°
First elevation
28°
Last azimuth
290°
Last elevation
25°
Brightness and color
Stellar Magnitude
-17
Color
Light Green
Concurrent Sound
Observation
Unknown
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Yes
Duration
6s
Length
60°
Remarks
Very bright greenish fireball visible during twilight. Western horizon was stil orange/crimson. Long contrail that was visible for 20 minutes or so after the event.
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
I think I saw slight fragmentation just before it winked out, but I'm not sure.