I only caught it initially in my peripheral vision so it may have been a little longer, was lucky enough to see it straight on when it flashed a very distinct red.
Location
Address
Ballyward, Northern Ireland (GB)
Latitude
54° 17' 48.84'' N (54.2969°)
Longitude
6° 3' 9.68'' W (-6.052689°)
Elevation
111.608032m
Time and Duration
Local Date & Time
2021-09-19 20:00 BST
UT Date & Time
2021-09-19 19:00 UT
Duration
<1s
Direction
Moving direction
From up left to down right
Descent Angle
145°
Moving
Facing azimuth
164.27°
First azimuth
148.02°
First elevation
50°
Last azimuth
153.89°
Last elevation
45°
Brightness and color
Stellar Magnitude
-9
Color
Orange, Yellow, Light Yellow, Red
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
It was quick red flash, very sudden and almost immediately disappeared afterwards.