Reports Report 451cv (Event 451-2015)

This report has been linked to the following event: Event 451-2015
Observer
NameG C
Experience Level1/5
RemarksOne of the most interesting celestial events I've ever witnessed. I was surprised by the length of time for which I observed this. All other experiences have been brief flashes.
Location
AddressSalt Lake City, UT
Latitude40° 44' 17.6'' N (40.74°)
Longitude 111° 51' 3.66'' W (-111.85°)
Elevation1370.67m
Time and Duration
Local Date & Time2015-02-23 22:55 MST
UT Date & Time2015-02-24 05:55 UT
Duration≈20s
Direction
Moving directionFrom up to down
Descent Angle180°
Moving
Facing azimuth0.36°
First azimuth359.74°
First elevation71°
Last azimuth359.7°
Last elevation13°
Brightness and color
Stellar Magnitude-8
ColorWhite, green, red spots falling off
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationYes
Duration20s
Length30°
RemarksA long train evident when I first noticed in the northern sky, with several smaller trains that made it appear it was breaking up, although the smaller pieces and trains kept falling in tandem with the largest. All were visible until they dipped below my visible horizon.
Terminal flash
ObservationUnknown
Remarks-
Fragmentation
ObservationYes
RemarksSeveral smaller pieces and trains were falling in tandem with the brightest, longest piece and train.