Duration felt very close to 2 second mark - took quick notes when it occurred (i.e. time is accurate)
Location
Address
Pembroke, MA
Latitude
42° 4' 17.5'' N (42.071528°)
Longitude
70° 48' 36.18'' W (-70.810051°)
Elevation
27.160305m
Time and Duration
Local Date & Time
2024-10-04 19:10 EDT
UT Date & Time
2024-10-04 23:10 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
184°
Moving
Facing azimuth
312.47°
First azimuth
315.24°
First elevation
41°
Last azimuth
309.44°
Last elevation
21°
Brightness and color
Stellar Magnitude
-11
Color
Green, Light Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
It certainly grew in brightness and apparent size at termination, but not a "flash" per-se. There were bits that broke off that appeared almost sparkly, primarily on the south-east side from my view.