I really don't know what it was. It definitely wasn't a firework and it was as bright as a the full moon was. I don't have much astronomy experience and really hope someone can come back confirming or denying really.
Location
Address
, England (GB)
Latitude
51° 44' 53.93'' N (51.748313°)
Longitude
2° 16' 53.6'' W (-2.281556°)
Elevation
44.809315m
Time and Duration
Local Date & Time
2021-02-28 21:58 GMT
UT Date & Time
2021-02-28 21:58 UT
Duration
≈3.5s
Direction
Moving direction
From down left to up right
Descent Angle
72°
Moving
Facing azimuth
344°
First azimuth
342°
First elevation
49°
Last azimuth
17°
Last elevation
38°
Brightness and color
Stellar Magnitude
-13
Color
Orange, Yellow, Light Yellow, Red
Concurrent Sound
Observation
Yes
Remarks
Afterwards there was a low rumble, softer than thunder but still definitely there.
Delayed Sound
Observation
Yes
Remarks
The bright light happened at the same time as a crackle and that's when I turned and saw it.
Persistent train
Observation
Yes
Duration
6s
Length
10°
Remarks
-
Terminal flash
Observation
Yes
Remarks
Whatever I saw broke apart 2-3 seconds after I saw it first. There was a bright light at first which dimmed some.