I did not actually see the fire ball. My friend saw it as he was driving up. He came in the house to tell us about it and have us come out and see the vapor trail it left behind. It was very distinct. We determined that the trajectory was south to north as indicated by the fading of the vapor trail to the south and its being brighter and more clear at the northern end.
Location
Address
Acampo, CA
Latitude
38° 9' 44.05'' N (38.162235°)
Longitude
121° 17' 28.66'' W (-121.291295°)
Elevation
15.199599m
Time and Duration
Local Date & Time
2015-01-03 18:45 PST
UT Date & Time
2015-01-04 02:45 UT
Duration
?
Direction
Moving direction
From left to right
Descent Angle
90°
Moving
Facing azimuth
271.68°
First azimuth
263.22°
First elevation
53°
Last azimuth
307.6°
Last elevation
37°
Brightness and color
Stellar Magnitude
-
Color
Purple, Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
99.99s
Length
99.99°
Remarks
Wide hazy white smudge from one horizon to the other - south to north. A thick line that persisted long enough to get others in the house out to see it.
