I was in a moving car at the time of the observation and so the observer location is at best approximate to within a mile or two along that stretch of the M9. I was on the westbound carriageway.
Location
Address
Polmont, Scotland (GB)
Latitude
55° 59' 31.42'' N (55.99206°)
Longitude
3° 42' 5.6'' W (-3.701555°)
Elevation
29.14566m
Time and Duration
Local Date & Time
2022-09-14 22:00 BST
UT Date & Time
2022-09-14 21:00 UT
Duration
≈7.5s
Direction
Moving direction
From up left to down right
Descent Angle
105°
Moving
Facing azimuth
253.14°
First azimuth
228.87°
First elevation
51°
Last azimuth
279.43°
Last elevation
21°
Brightness and color
Stellar Magnitude
-20
Color
Green, Light Yellow, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
10s
Length
30°
Remarks
Dark smoke train
Terminal flash
Observation
No
Remarks
-
Fragmentation
Observation
Yes
Remarks
Object fragmented into smaller yellow glowing fragments towards final third of its descent