Your automatic data gathering did not allow me to specify that all my visual observations came off my outside security camera. It faces due north. Only after the event did I go back and replay the recorded video to see three distinct flashes reflected off the water of the lake I live on. We had an overcast sky that night. My video, which was date/time stamped indicated the first flash occurred at 1705:27 with 1 second intervals between the next two pulses of light. The color of the light being filtered through cloud layer of unknown thickness (broken layer or ceiling) could not be determined. My outdoor camera switches to B/W at night.
Location
Address
Shelton, WA
Latitude
47° 14' 47.51'' N (47.24653°)
Longitude
123° 7' 10.2'' W (-123.1195°)
Elevation
73.991m
Time and Duration
Local Date & Time
2018-03-07 19:05 PST
UT Date & Time
2018-03-08 03:05 UT
Duration
≈1.5s
Direction
Moving direction
From up left to down right
Descent Angle
99°
Moving
Facing azimuth
360°
First azimuth
-
First elevation
45°
Last azimuth
270°
Last elevation
11°
Brightness and color
Stellar Magnitude
-6
Color
White
Concurrent Sound
Observation
Yes
Remarks
Loud explosion that shook the house. It persisted for several seconds
Delayed Sound
Observation
Yes
Remarks
Sound lasted several seconds. We were inside the house at the time
