Reports Report 4150bm (Event 4150-2021)

Observer
Name Ellen B
Experience Level 1/5
Remarks I took my greyhound Nika out one last time before bed and saw a bright, white light streak across the sky from west to east, high to low in the sky. It turned green, burned super bright and big, and then shifted back to a smaller, white, streaking light before it disappeared. It was so bright that my first thought was that it may have been a malfunctioning firework, but the trajectory (diagonal high to low) just didn't square with that. It was really big (I was waiting to see if I would hear or see it hit the ground--I didn't) and only lasted for 5 seconds at most--and it may have been closer to 3 seconds, and just seemed longer to me.
Location
Address Turlock, CA
Latitude 37° 30' 54.48'' N (37.515134°)
Longitude 120° 49' 33.76'' W (-120.826045°)
Elevation 34.803871m
Time and Duration
Local Date & Time 2021-07-31 00:30 PDT
UT Date & Time 2021-07-31 07:30 UT
Duration ≈3.5s
Direction
Moving direction From up left to down right
Descent Angle 110°
Moving
Facing azimuth 7.73°
First azimuth 333.98°
First elevation 51°
Last azimuth 31.11°
Last elevation 29°
Brightness and color
Stellar Magnitude -9
Color White, Green, white
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation Unknown
Remarks -
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation Unknown
Remarks -
Fragmentation
Observation Unknown
Remarks -