Reports Report 3587ai (Event 3587-2015)

Observer
Name Christopher M
Experience Level 3/5
Remarks It was a very horizontal traverse, just above eye level. I had just summited a small, mostly bare hill when it caught my eye. Not sure how long it had been going before I noticed it. Time I gave and start position are based on my viewing only. Could have missed the beginning. It went behind a tree and didn't emerge, though its track left the impression it would have emerged. Initially appeared like a very bright, very fast moving airplane or jet. Before the tail appeared, I was struggling to understand it as what kind of airplane could be moving this fast. For a meteor, in may experience anyway, it moved really slowly. This is why I thought it was a plane, at first. All meteors I have ever seen were much smaller, and lightning fast.
Location
Address Boulder, CO
Latitude 39° 58' 27.66'' N (39.974351°)
Longitude 105° 16' 23.86'' W (-105.273295°)
Elevation 1819.944m
Time and Duration
Local Date & Time 2015-11-22 17:35 MST
UT Date & Time 2015-11-23 00:35 UT
Duration ≈3.5s
Direction
Moving direction From left to right
Descent Angle 90°
Moving
Facing azimuth 111.24°
First azimuth 86.64°
First elevation 11°
Last azimuth 121.81°
Last elevation 11°
Brightness and color
Stellar Magnitude -7
Color White
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation Unknown
Remarks -
Fragmentation
Observation Yes
Remarks lava-lamp-looking tail appeared halfway through its traverse. At start I just thought is was an exceptionally bright jet airplane, then the tail appeared.