I think it was heading in the direction of East Cardiff, hopefully my angles on the observation reflect this.
Location
Address
, Wales (GB)
Latitude
51° 24' 11.77'' N (51.403269°)
Longitude
3° 16' 39.76'' W (-3.277712°)
Elevation
38.317204m
Time and Duration
Local Date & Time
2022-05-16 21:43 BST
UT Date & Time
2022-05-16 20:43 UT
Duration
≈1.5s
Direction
Moving direction
From up right to down left
Descent Angle
265°
Moving
Facing azimuth
147°
First azimuth
147°
First elevation
50°
Last azimuth
141°
Last elevation
48°
Brightness and color
Stellar Magnitude
-16
Color
Light Green, Light Yellow, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
I saw it appear as one bright light (like a firework, but it was way to high/bright to be a firework) then after about a second it split into three pieces, then faded.