The time is approximate. I witnessed with my husband then went inside to do some reading and realized this was a bolide we had seen, didn't realize how rare it was and how much attention we should have paid to the details. Hoping others have better notes to share
Location
Address
Highwood, IL
Latitude
42° 11' 46.62'' N (42.196282°)
Longitude
87° 48' 40.09'' W (-87.811137°)
Elevation
210.69m
Time and Duration
Local Date & Time
2017-08-13 00:40 CDT
UT Date & Time
2017-08-13 05:40 UT
Duration
≈3.5s
Direction
Moving direction
From up left to down right
Descent Angle
113°
Moving
Facing azimuth
219.13°
First azimuth
256.42°
First elevation
58°
Last azimuth
251.16°
Last elevation
38°
Brightness and color
Stellar Magnitude
-20
Color
Red
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Yes
Duration
2s
Length
20°
Remarks
It was a bolide , never saw anything like it. It looked like fire and smoke, a glowing train ending with an explosion. Amazing
Terminal flash
Observation
Yes
Remarks
It all happened so quickly but it was like an explosion
Fragmentation
Observation
Yes
Remarks
I'm pretty sure I saw sparks shoot from it as it exploded
