The time I wrote 21:00 may not be exact but very close. The light appeared a couple of seconds before we saw the fireball. It came from behind us as we were walking north. My wife thinks the light was more yellow than white. The sonic book occurred 2 to 3 minutes after we saw the fireball.
Location
Address
, Alberta (CA)
Latitude
53° 0' 5.88'' N (53.001634°)
Longitude
113° 25' 5.27'' W (-113.41813°)
Elevation
763m
Time and Duration
Local Date & Time
2021-12-07 21:00 MST
UT Date & Time
2021-12-08 04:00 UT
Duration
≈7.5s
Direction
Moving direction
From up left to down right
Descent Angle
179°
Moving
Facing azimuth
179°
First azimuth
179°
First elevation
90°
Last azimuth
20°
Last elevation
21°
Brightness and color
Stellar Magnitude
-22
Color
White
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Yes
Remarks
sonic boom
Persistent train
Observation
Yes
Duration
2s
Length
15°
Remarks
Glowing train just visible through the thin cirrus clouds
