first time i have ever heard one. remarkable emerald green flash.
Location
Address
Austin, TX
Latitude
30° 23' 55.87'' N (30.398852°)
Longitude
97° 42' 9.69'' W (-97.702693°)
Elevation
-
Time and Duration
Local Date & Time
2012-02-05 21:18 CST
UT Date & Time
2012-02-06 03:18 UT
Duration
≈3.5s
Direction
Moving direction
From up to down
Descent Angle
180°
Moving
Facing azimuth
100.3048°
First azimuth
98.0651°
First elevation
40°
Last azimuth
107.86482°
Last elevation
38°
Brightness and color
Stellar Magnitude
-5
Color
green
Concurrent Sound
Observation
Yes
Remarks
-
Delayed Sound
Observation
No
Remarks
see flash/fragmentation section
Persistent train
Observation
Unknown
Duration
-1s
Length
-1°
Remarks
-
Terminal flash
Observation
Yes
Remarks
Soft crackling sound like distant fireworks with a trail of orange sparks as it fragmented and ended in a silent green flash. It dipped a degree or two as it burned out.