It started west-northwest of my location and finished east-southeast of my location. I feel the track on your map is a little farther north than it really was. The trajectory looked as though it finished farther south, say the southeast corner of Iowa. My observation of course.
Location
Address
Blakesburg, IA
Latitude
40° 57' 40.75'' N (40.961319°)
Longitude
92° 38' 15.07'' W (-92.637519°)
Elevation
278.318m
Time and Duration
Local Date & Time
2018-07-08 20:40 CDT
UT Date & Time
2018-07-09 01:40 UT
Duration
≈7.5s
Direction
Moving direction
From down left to up right
Descent Angle
6°
Moving
Facing azimuth
-
First azimuth
300°
First elevation
86°
Last azimuth
120°
Last elevation
13°
Brightness and color
Stellar Magnitude
-24
Color
Blue, Light Blue, Green, White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Unknown
Remarks
-
Fragmentation
Observation
Yes
Remarks
At roughly 30 degrees above horizon I seen one piece separate to what appeared to my left looking at it after it had passed overhead, so looking east the fragment separated on the north facing edge.
