I was a member of the Star Astronomy Club of Holmdel, NJ 07733 for 10 years in the 1970's/1980's with astro-photography experience
Location
Address
South Bristol, ME
Latitude
43° 51' 30.31'' N (43.85842°)
Longitude
69° 33' 6.31'' W (-69.551753°)
Elevation
38.185m
Time and Duration
Local Date & Time
2016-05-17 00:50 EDT
UT Date & Time
2016-05-17 04:50 UT
Duration
≈7.5s
Direction
Moving direction
From up left to down right
Descent Angle
107°
Moving
Facing azimuth
343.69°
First azimuth
300°
First elevation
30°
Last azimuth
340°
Last elevation
20°
Brightness and color
Stellar Magnitude
-22
Color
White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
The final flash was large orange flames in a rectangular form along the line of trajectory. My first thought was it was a burning aircraft falling from the sky near by.