This "glowing trail" is starting lol hanging in the air. I first thought this was a local rocket launch that had been scheduled here in CA near San lLuis Obispo, but I realized that was impossible due to 1. Direction and 2. The launch had been postponed due to a hydrogen leak.
Photo
Location
Address
, CA
Latitude
36° 49' 53.91'' N (36.831643°)
Longitude
121° 23' 47.55'' W (-121.396541°)
Elevation
97.207527m
Time and Duration
Local Date & Time
2018-12-19 17:39 PST
UT Date & Time
2018-12-20 01:39 UT
Duration
≈20s
Direction
Moving direction
From up right to down left
Descent Angle
264°
Moving
Facing azimuth
289.74°
First azimuth
294.15°
First elevation
50°
Last azimuth
280.74°
Last elevation
38°
Brightness and color
Stellar Magnitude
-25
Color
White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
Yes
Duration
99.99s
Length
35°
Remarks
Glowing, snake-like left to right trail that seemed to come forward and down, southwest to southeast.