I'm an astrophysicist and planetary scientist. I observed it with lots of city light pollution so the magnitude is difficult to estimate. It came from over my right shoulder, diagonally overhead (~NNW).
Location
Address
Toronto, Ontario (CA)
Latitude
43° 40' 17.75'' N (43.671596°)
Longitude
79° 24' 19.97'' W (-79.405547°)
Elevation
119.044197m
Time and Duration
Local Date & Time
2018-11-28 21:15 EST
UT Date & Time
2018-11-29 02:15 UT
Duration
≈3.5s
Direction
Moving direction
From up right to down left
Descent Angle
258°
Moving
Facing azimuth
340°
First azimuth
80°
First elevation
60°
Last azimuth
332°
Last elevation
31°
Brightness and color
Stellar Magnitude
-9
Color
Dark Green, Green, Light Green, 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
Initially a single small piece came off and continued along roughly the same path, then the main part broke into (I think) at least 2 pieces before disappearing
