Reports Report 2415u (Event 2415-2015)

Observer
Name Chad S
Experience Level 3/5
Remarks Five of us saw this event while walking in Yellowstone National Park under the light of the moon. I'd like to know more about it if anyone else saw it, if it's been reported or recorded elsewhere?
Location
Address Yellowstone National Park, WY
Latitude 44° 59' 23.98'' N (44.989995°)
Longitude 110° 41' 28.72'' W (-110.691312°)
Elevation 1720.133911m
Time and Duration
Local Date & Time 2015-09-26 20:35 MDT
UT Date & Time 2015-09-27 02:35 UT
Duration ≈1.5s
Direction
Moving direction From up right to down left
Descent Angle 267°
Moving
Facing azimuth 93.02°
First azimuth 273.82°
First elevation 73°
Last azimuth 93.77°
Last elevation 29°
Brightness and color
Stellar Magnitude -21
Color Blue, Light Green, White
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation Yes
Duration 99.99s
Length 60°
Remarks It went from west to east and was illuminated by a nearly full moon, lasted for several minutes as we walked in the dark. It started directly overhead and somewhat south of us, and ended to the east in the distance. We were in a deep canyon so we could not see the horizon, but did see the end of the smoke trail.
Terminal flash
Observation Yes
Remarks The object streaked across the sky as a white ball of light and as it travelled east it became brighter. It ended suddenly in a bright blue green flash and appeared to grow in size slightly. It disappeared as quick as it appeared.
Fragmentation
Observation No
Remarks -