I'm a Meteorologist (study more hydrometeors, but have good scientific background)
Location
Address
Hastings, NE
Latitude
40° 38' 55.87'' N (40.648854°)
Longitude
98° 23' 0.43'' W (-98.383452°)
Elevation
591.732m
Time and Duration
Local Date & Time
2018-07-09 03:15 CDT
UT Date & Time
2018-07-09 08:15 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
161°
Moving
Facing azimuth
185°
First azimuth
170°
First elevation
30°
Last azimuth
180°
Last elevation
10°
Brightness and color
Stellar Magnitude
-7
Color
Light Blue, Light Green, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
As the streak ended at the horizon, the object flared out with a blue-green center and white outline, outshining city lights on the horizon about 2 miles away.