Reports Report 5311bg (Event 5311-2017)

This report has been linked to the following event: Event 5311-2017
Observer
Namekevin S
Experience Level4/5
Remarksthe 'green impact? flash' and the black shape seen in the center of the fireball were firsts for me
Location
AddressEast Dubuque, IA
Latitude42° 28' 4.3'' N (42.47°)
Longitude 90° 36' 20.63'' W (-90.61°)
Elevation187.2m
Time and Duration
Local Date & Time2017-12-18 23:52 CST
UT Date & Time2017-12-19 05:52 UT
Duration≈3.5s
Direction
Moving directionFrom down left to up right
Descent Angle22°
Moving
Facing azimuth98.04°
First azimuth99°
First elevation70°
Last azimuth95°
Last elevation-
Brightness and color
Stellar Magnitude-6
Colorlt yellow to yellowish to orangish yellow to lt green to green from start to end
Concurrent Sound
ObservationUnknown
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationNo
Duration-
Length-
Remarks-
Terminal flash
ObservationYes
Remarksa beat after i saw it disappear behind the hill i saw a half spherical shaped green flash brighter at the center horizon area fading out to the top and sides.
Fragmentation
ObservationYes
Remarksthe head of the fireball was very elongated and the last few split seconds before it went behind the horizon noticed dark spot/specks at the center of the fireball bottom head portion.