It was quite impressive and startling! It lit up the surroundings very brightly. My wife was facing away from it, but it lit up the house in the dark that she immediately turned around and caught the tail end of it.
Location
Address
Phoenixville, PA
Latitude
40° 9' 56.91'' N (40.165808°)
Longitude
75° 32' 25.53'' W (-75.540426°)
Elevation
67.238m
Time and Duration
Local Date & Time
2017-09-17 00:57 EDT
UT Date & Time
2017-09-17 04:57 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
129°
Moving
Facing azimuth
241.27°
First azimuth
218.2°
First elevation
58°
Last azimuth
251.91°
Last elevation
28°
Brightness and color
Stellar Magnitude
-18
Color
Light Blue
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Started very quickly as a very bright light blue light that lit up the entire sky!
Fragmentation
Observation
Yes
Remarks
As the light dimmed, it appeared to fragment in 2-3 pieces in a straight line fashion
