I was next to Dulles Airport (IAD) on Old Ox Rd facing NorthEast. The fireball lasted 6 seconds moving from West to East. It flashed out instead of disappearing over the horizon.
Location
Address
Sterling, VA
Latitude
38° 57' 32.43'' N (38.959009°)
Longitude
77° 30' 41.82'' W (-77.511618°)
Elevation
78.393761m
Time and Duration
Local Date & Time
2013-03-22 20:00 EDT
UT Date & Time
2013-03-23 00:00 UT
Duration
≈7.5s
Direction
Moving direction
From up left to down right
Descent Angle
135°
Moving
Facing azimuth
53.24°
First azimuth
3.69°
First elevation
35°
Last azimuth
75.09°
Last elevation
37°
Brightness and color
Stellar Magnitude
-24
Color
Green, Yellow, Light Yellow
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-1s
Length
-1°
Remarks
-
Terminal flash
Observation
Yes
Remarks
A very bright flash just prior to disappearing. Not disappearing out of sight, but no longer a fireball.
Fragmentation
Observation
Yes
Remarks
Small fragments "dropping off" main fireball and flashing as they disappeared.
