At first I thought it could be a plane as local air traffic follows a similar line from my vantage point but it was clearly an object breaking apart and burning. The residual trails of fire were quite long- both in space and duration of visibility.
On a personal note: it was by far the coolest shooting star I've ever seen!
Location
Address
Jackson, WY
Latitude
43° 28' 41.64'' N (43.478232°)
Longitude
110° 45' 2.87'' W (-110.750796°)
Elevation
1914.823853m
Time and Duration
Local Date & Time
2015-02-23 22:55 MST
UT Date & Time
2015-02-24 05:55 UT
Duration
≈20s
Direction
Moving direction
From up left to down right
Descent Angle
100°
Moving
Facing azimuth
280.99°
First azimuth
265.12°
First elevation
58°
Last azimuth
308.03°
Last elevation
-
Brightness and color
Stellar Magnitude
-11
Color
Light Yellow
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
No
Remarks
-
Fragmentation
Observation
Yes
Remarks
Broke into approximately 10 segments. Each left a long semi-horizontal comet-like trail. There was one vertical fragment that fell a few seconds after the main segment disappeared below the horizon (behind a local butte); it appeared in approximately the area of the origin of visibility. The main segment seemed large enough that it might actually make contact to Earth surface but no residual sound effects could be heard from my location within 15 seconds after object was no longer in sight.