American Meteor Society

Reports Report 4515a (Event 4515-2020)

Observer
Name Stewart T
Experience Level 4/5
Remarks I have a good series of 15-second automatic exposures of the event from an All Sky Camera that shows a very nice progression of the expanding smoke ring for ~10 minutes.
Video
Location
Address Morgan Hill, CA
Latitude 37° 9' 14'' N (37.153888°)
Longitude 121° 36' 11.08'' W (-121.603079°)
Elevation 213.93988m
Time and Duration
Local Date & Time 2020-08-13 03:50 PDT
UT Date & Time 2020-08-13 10:50 UT
Duration ≈7.5s
Direction
Moving direction From right to left
Descent Angle 270°
Moving
Facing azimuth 40°
First azimuth 40°
First elevation 50°
Last azimuth 35°
Last elevation 45°
Brightness and color
Stellar Magnitude -6
Color White
Concurrent Sound
Observation Unknown
Remarks -
Delayed Sound
Observation Unknown
Remarks -
Persistent train
Observation Yes
Duration 99.99s
Length 20°
Remarks Expanding circular smoke ring, impressively long-lasting
Terminal flash
Observation Yes
Remarks Very quick into the event with very limited trail beforehand, singular explosion with persistent expanding smoke ring thereafter. Photo/video recording only.
Fragmentation
Observation Yes
Remarks Possible fragmentation visible after the main flash, but quickly vaporized. Odd bent shape at first. I have video.