The object was quite large and encircled with orange-red flames. Quite bright. No sound. Saw this at 5:00PM from my semi-truck on way to Fort Collins Colorado to deliver my cargo.
Location
Address
Limon, CO
Latitude
39° 15' 49.95'' N (39.263876°)
Longitude
103° 41' 31.83'' W (-103.692174°)
Elevation
-
Time and Duration
Local Date & Time
2013-12-23 17:00 MST
UT Date & Time
2013-12-24 00:00 UT
Duration
≈3.5s
Direction
Moving direction
From right to left
Descent Angle
270°
Moving
Facing azimuth
90°
First azimuth
315°
First elevation
45°
Last azimuth
315°
Last elevation
45°
Brightness and color
Stellar Magnitude
-24
Color
firery color all around it (reds and oranges) It lit up the prairie I was driving through.
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Unknown
Remarks
-
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
No
Remarks
-
Fragmentation
Observation
Unknown
Remarks
object was encircled with red-orange flames with possible fragmentation ?