This was not just one fireball. In fact each of the fireballs in this "clump" were about the same size and I could see the glowing edges of them, but also distinguished a dark center in each ball before the train started.
Location
Address
Houston, TX
Latitude
29° 49' 48'' N (29.830001°)
Longitude
95° 12' 34'' W (-95.209445°)
Elevation
11.313462m
Time and Duration
Local Date & Time
2013-02-27 03:35 CST
UT Date & Time
2013-02-27 09:35 UT
Duration
≈10s
Direction
Moving direction
From right to left
Descent Angle
270°
Moving
Facing azimuth
117.22°
First azimuth
109.82°
First elevation
42°
Last azimuth
24.64°
Last elevation
40°
Brightness and color
Stellar Magnitude
-19
Color
Dark Blue, Orange, Yellow
Concurrent Sound
Observation
Unknown
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
12s
Length
10°
Remarks
It was very billowing and glowing. Train was about 2-3 times the diameter of the fireball