Reports Report 491j (Event 491-2020)

This report has been linked to the following event: Event 491-2020
Observer
NameDavid P
Experience Level3/5
RemarksI acknowledge the possibility that this may have been an amateur firework, but I am fairly certain that it was not. The main reason is that fireworks nearly always explode while on the upward trajectory, with the shower of sparks then arcing back down to earth. The fireball I saw first became visible while in a trajectory nearly straight down from altitude, moving much faster than what I associate with fireworks, and the explosion did not "bloom" outward but simply multiplied the single large streak into smaller streaks all parallel and in tight formation to the original, before vanishing. Furthermore, the event was much larger than I would associate with amateur fireworks. I don't know how to describe how I know this, but it was just brighter and wider and more sudden than any firework I've seen. It was wide enough that it looked like it was very close, as if it something was crashing down just a few hundred yards away.
Location
AddressClearwater, FL
Latitude27° 54' 57.37'' N (27.92°)
Longitude 82° 42' 33.51'' W (-82.71°)
Elevation4.27m
Time and Duration
Local Date & Time2020-01-26 00:31 EST
UT Date & Time2020-01-26 05:31 UT
Duration≈1.5s
Direction
Moving directionFrom up left to down right
Descent Angle177°
Moving
Facing azimuth73.15°
First azimuth73.97°
First elevation55°
Last azimuth73.37°
Last elevation24°
Brightness and color
Stellar Magnitude-14
ColorWhite
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationUnknown
Duration-
Length-
Remarks-
Terminal flash
ObservationYes
RemarksThe object began as a sudden long streak of light, brightening over the course of about a second until it "shattered" into smaller sparks like a firework but all with the same downward trajectory.
Fragmentation
ObservationYes
RemarksThe fragments after the terminal flash moved slightly out and parallel to the main body of the object in at least two smaller trails while maintaining the same trajectory (downward).