Traveling in car at time of sighting. Noticed a slight puff of dark smoke (about the width of a thumbnail at arms length) near terminus but several seconds after, so can\'t really make 100% association.
Location
Address
Boulder, CO
Latitude
40° 4' 21.67'' N (40.072686°)
Longitude
105° 8' 58.29'' W (-105.149524°)
Elevation
-
Time and Duration
Local Date & Time
2011-02-22 17:50 MST
UT Date & Time
2011-02-23 00:50 UT
Duration
≈1s
Direction
Moving direction
From up left to down right
Descent Angle
135°
Moving
Facing azimuth
89.2942°
First azimuth
62.92458°
First elevation
45°
Last azimuth
101.13225°
Last elevation
35°
Brightness and color
Stellar Magnitude
-7
Color
-
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-1s
Length
-1°
Remarks
-
Terminal flash
Observation
Yes
Remarks
it seemed to increase in brightness, diminish to near disappearance for about 1 degree, then bright flash and gone.
