The intensity of the color streak was observable above the green glow in the cloud deck.
Location
Address
Royal Oak, MI
Latitude
42° 30' 10.48'' N (42.502912°)
Longitude
83° 7' 53.72'' W (-83.131589°)
Elevation
196.811691m
Time and Duration
Local Date & Time
2018-01-16 20:29 EST
UT Date & Time
2018-01-17 01:29 UT
Duration
≈1.5s
Direction
Moving direction
From down right to up left
Descent Angle
283°
Moving
Facing azimuth
324.39°
First azimuth
276.64°
First elevation
-
Last azimuth
234.89°
Last elevation
-
Brightness and color
Stellar Magnitude
-15
Color
Green
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
Yes
Remarks
Extreme Low frequency boom, similar to a distant sonic boom with the major components below 50 Hz. (I am an electro-acoustic engineer so I was careful in this estimate. I would hesitate to estimate the SPL because I was indoors looking out the window at the snow. Note that the streak if green was bright enough in cloud cov.
Persistent train
Observation
Unknown
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Green flash above the cloud deck with streak moving to the south.
