I did not have completely clear view as I saw it behind trees but it was exceptionally bright and lasted 3+ seconds
Location
Address
, CA
Latitude
37° 31' 52.15'' N (37.531154°)
Longitude
122° 21' 50.95'' W (-122.364154°)
Elevation
99.834m
Time and Duration
Local Date & Time
2018-06-18 21:00 PDT
UT Date & Time
2018-06-19 04:00 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
102°
Moving
Facing azimuth
250.74°
First azimuth
216.17°
First elevation
30°
Last azimuth
256.02°
Last elevation
10°
Brightness and color
Stellar Magnitude
-11
Color
White
Concurrent Sound
Observation
Yes
Remarks
Between 30 sec to one minute after seeing I heard low pitch thunder like explosive boom. The meteor travelled in general direction south west at relatively low angle trajectory
Delayed Sound
Observation
Yes
Remarks
Like distant thunder clap or explosing within 1 minute after seeing
