I've never experienced anything like this before, had just been watching perseverance landing on mars and went outside for a cigarette and focused on distant star then I saw this.
Location
Address
Carnock, Scotland (GB)
Latitude
56° 5' 5.8'' N (56.084945°)
Longitude
3° 32' 7.56'' W (-3.535434°)
Elevation
109.826706m
Time and Duration
Local Date & Time
2021-02-18 21:16 GMT
UT Date & Time
2021-02-18 21:16 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
258°
Moving
Facing azimuth
347.72°
First azimuth
325.64°
First elevation
35°
Last azimuth
209.51°
Last elevation
31°
Brightness and color
Stellar Magnitude
-4
Color
It was a vivid blue green at head like gas but trailing a tail of orange fireworks
Concurrent Sound
Observation
Yes
Remarks
I never heard it coming but on it's wake I heard air like the faint sound of something going through air