I'm not sure about the time or location exactly -- I didn't know to report it until now, so some of the details might be fuzzy. I hope that I can help, though!
Location
Address
Davis, CA
Latitude
38° 33' 29.12'' N (38.558089°)
Longitude
121° 44' 46.53'' W (-121.746259°)
Elevation
11.478m
Time and Duration
Local Date & Time
2017-12-15 21:47 PST
UT Date & Time
2017-12-16 05:47 UT
Duration
?
Direction
Moving direction
From down right to up left
Descent Angle
279°
Moving
Facing azimuth
257.07°
First azimuth
-
First elevation
36°
Last azimuth
272.98°
Last elevation
36°
Brightness and color
Stellar Magnitude
-8
Color
Green, Light Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Yes
Duration
30s
Length
20°
Remarks
The train was green and glowing, and seemed to be split into two parts about a third of the way through.
Terminal flash
Observation
Yes
Remarks
The flash was what alerted me to the fireball, and then I saw the train. I don't know if I saw the actual fireball, but the flash was really bright.
Fragmentation
Observation
Yes
Remarks
The train looked like it split in two about a third of the way through, leaving two separate paths that both persisted.
