Location given is approximate as I did not note the mile marker at the time. It is accurate to within about 5-7 miles. Based on how close it appeared to be, I would estimate it came within 500-1000 feet of the ground before going out.
Location
Address
Conrad, MT
Latitude
48° 13' 4.73'' N (48.217981°)
Longitude
111° 56' 0.74'' W (-111.93354°)
Elevation
1037.736084m
Time and Duration
Local Date & Time
2013-12-28 03:20 MST
UT Date & Time
2013-12-28 10:20 UT
Duration
≈1.5s
Direction
Moving direction
From up to down
Descent Angle
180°
Moving
Facing azimuth
-
First azimuth
-
First elevation
-
Last azimuth
-
Last elevation
15°
Brightness and color
Stellar Magnitude
-17
Color
Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
__
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
No fragmentation that I could see. It dropped into my field of view and grew brighter just before it went out. The intensity was as bright as typically seen in fireworks.
