As I say, it may be irrelevant as it felt v low and close - but I can’t think of any other explanation and it looked like nothing I have seen before.
Location
Address
, England (GB)
Latitude
51° 17' 14.1'' N (51.28725°)
Longitude
0° 49' 42.59'' W (-0.828497°)
Elevation
69.996727m
Time and Duration
Local Date & Time
2022-05-16 21:45 BST
UT Date & Time
2022-05-16 20:45 UT
Duration
≈1.5s
Direction
Moving direction
From up left to down right
Descent Angle
98°
Moving
Facing azimuth
143.57°
First azimuth
136.85°
First elevation
7°
Last azimuth
309.94°
Last elevation
5°
Brightness and color
Stellar Magnitude
-6
Color
Dark Green and White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
2s
Length
20°
Remarks
It was v low and close but seemed to leave a bright trail