It traveled incredibly fast across the sky and reminded me of a firework with a bright green central light with white sparks coming off of it. It lasted 2-3 seconds and the light looked like it expired as it passed over the Diablo Mountain Range just north of Mt. Hamilton. It had a very flat trajectory.
Location
Address
Tracy, CA
Latitude
37° 40' 24.4'' N (37.673444°)
Longitude
121° 20' 35.71'' W (-121.343254°)
Elevation
24.615007m
Time and Duration
Local Date & Time
2019-12-15 06:40 PST
UT Date & Time
2019-12-15 14:40 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
94°
Moving
Facing azimuth
180°
First azimuth
84.87°
First elevation
24°
Last azimuth
244.54°
Last elevation
27°
Brightness and color
Stellar Magnitude
-25
Color
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
There were varying degrees of white sparks coming off of the green bright light then it appeared to burn out.
