I observed this while driving my car and pulled over to watch. The time reported was approximate .
Location
Address
Tucson, AZ
Latitude
32° 16' 8.19'' N (32.268941°)
Longitude
110° 49' 15.13'' W (-110.820869°)
Elevation
778.315186m
Time and Duration
Local Date & Time
2013-10-19 19:20 MST
UT Date & Time
2013-10-20 02:20 UT
Duration
≈7.5s
Direction
Moving direction
From up left to down right
Descent Angle
135°
Moving
Facing azimuth
70.32°
First azimuth
34.91°
First elevation
70°
Last azimuth
76.01°
Last elevation
6°
Brightness and color
Stellar Magnitude
-13
Color
Light Yellow
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
1s
Length
10°
Remarks
Fireball had glowing train 5-10 degrees that dissipated over a second or two. it passed next to the nearly full moon from our viewpoint and was just as bright. I've never seen anything like it.