Reports Report 5618bf (Event 5618-2018)

This report has been linked to the following event: Event 5618-2018
Observer
NameA J
Experience Level3/5
RemarksImmediately thought it was a fireball -- like have seen on YouTube videos of the one in Russia. Thought it must be meteor from meteor shower happening now.
Location
AddressOakland, CA
Latitude37° 49' 32.92'' N (37.83°)
Longitude 122° 15' 11.61'' W (-122.25°)
Elevation30.79m
Time and Duration
Local Date & Time2018-12-19 17:32 PST
UT Date & Time2018-12-20 01:32 UT
Duration≈7.5s
Direction
Moving directionFrom up right to down left
Descent Angle261°
Moving
Facing azimuth235.71°
First azimuth259.88°
First elevation37°
Last azimuth233.75°
Last elevation23°
Brightness and color
Stellar Magnitude-5
ColorBright glowing pale yellowy cream with a green tinge, especially so at the bright, starlike leading point (the ball itself); the ball then suddenly disappeared (disintegrated?), leaving a bright, whitening contrail with a flat-looking end where the call h
Concurrent Sound
ObservationUnknown
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationYes
Duration99.99s
Length30°
RemarksSee note describing color of fireball for details about smoke trail. Also, The train grew from 15-25 degrees to 30-40 over time (wind seemed to disperse it, elongating it and making it wider and less sharply defined at edges.
Terminal flash
ObservationUnknown
Remarks-
Fragmentation
ObservationUnknown
Remarks-