Whole event was silent. Fireball appeared large and relatively slow. I estimate it appeared as 1/4 size of the moon. I was surprised at two flashes on impact, I expected one from one falling body.
Location
Address
Jasper, Alberta (CA)
Latitude
52° 52' 39.54'' N (52.87765°)
Longitude
118° 4' 46.96'' W (-118.07971°)
Elevation
1055.06m
Time and Duration
Local Date & Time
2017-09-04 23:11 MDT
UT Date & Time
2017-09-05 05:11 UT
Duration
≈3.5s
Direction
Moving direction
From up to down
Descent Angle
180°
Moving
Facing azimuth
170°
First azimuth
170°
First elevation
40°
Last azimuth
170°
Last elevation
-
Brightness and color
Stellar Magnitude
-21
Color
Light Yellow
Concurrent Sound
Observation
No
Remarks
-
Delayed Sound
Observation
No
Remarks
-
Persistent train
Observation
No
Duration
-
Length
-
Remarks
-
Terminal flash
Observation
Yes
Remarks
Object disappeared vertically down behind ridge, followed almost immediately by two large, bright orange flashes in quick succession silhouetting the ridge.
