I really wasn't sure what I saw but it was amazing. And a little scary. Then I found a link from our local news station about it and that's how I found out where to report what I saw. I hope this helps.
Location
Address
St. Charles, MO
Latitude
38° 46' 35.11'' N (38.776419°)
Longitude
90° 31' 38.13'' W (-90.527259°)
Elevation
-
Time and Duration
Local Date & Time
2013-12-26 17:40 CST
UT Date & Time
2013-12-26 23:40 UT
Duration
?
Direction
Moving direction
From up right to down left
Descent Angle
225°
Moving
Facing azimuth
270°
First azimuth
315°
First elevation
25°
Last azimuth
225°
Last elevation
10°
Brightness and color
Stellar Magnitude
-20
Color
Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
1s
Length
10°
Remarks
Glowing train that followed the green light. Looked like it was burning. Almost like a firework.