I was facing away at the moment of occurrence. A bright flash lit up the area. I turned around to see a very wide and clearly-defined trail that rapidly faded.
Location
Address
Council, ID
Latitude
45° 3' 32.27'' N (45.058964°)
Longitude
116° 42' 25.62'' W (-116.707118°)
Elevation
1448.946533m
Time and Duration
Local Date & Time
2015-04-15 05:07 MDT
UT Date & Time
2015-04-15 11:07 UT
Duration
≈1.5s
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
276.23°
First azimuth
260.11°
First elevation
25°
Last azimuth
294.26°
Last elevation
24°
Brightness and color
Stellar Magnitude
-17
Color
Yellow
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
45s
Length
30°
Remarks
10-20 times greater width than jet contrail; very "fat". Dissipated rapidly. May have been associated with a dark "hole" in adjacent cloudbank to the south.
