Reports Report 4039v (Event 4039-2015)

This report has been linked to the following event: Event 4039-2015
Observer
NameNancy S
Experience Level2/5
RemarksOur location during viewing is precise within 50m. The time is approximate (between 18:00 and 19:00). The fireball appeared directly below Auriga, trailed down and northward, and exploded just before passing behind a butte. My directions and angles are guesstimates, but the appearance began about 1 fingerwidth below the bottom center of Auriga; a star map should help sort out angles.
Location
AddressWinterhaven, CA
Latitude32° 56' 19.23'' N (32.94°)
Longitude 114° 53' 13.23'' W (-114.89°)
Elevation168.57m
Time and Duration
Local Date & Time2015-12-17 18:30 PST
UT Date & Time2015-12-18 02:30 UT
Duration≈3.5s
Direction
Moving directionFrom up right to down left
Descent Angle229°
Moving
Facing azimuth79.53°
First azimuth75.56°
First elevation45°
Last azimuth45°
Last elevation20°
Brightness and color
Stellar Magnitude-11
ColorBlue, Light Green, White
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationNo
Duration-
Length-
Remarks-
Terminal flash
ObservationYes
RemarksFireball made bright white trail long enough for me to say "WOW WOW WOW LOOK!" and my partner to turn to look and see it. Then it turned blue, then flashed brighter blue, then exploded. There may have been a green shade during the explosion, but we aren't sure.
Fragmentation
ObservationYes
RemarksWhen fireball exploded it sent fragments (at least 4, no more than 10) out in multiple directions. To the best of my knowledge the radials went in all directions instead of just toward the ground. The fragments' trails outward were white, maybe greenish white.