Reports Report 4572a (Event 4572-2017)

This report has been linked to the following event: Event 4572-2017
Observer
NameEthan N
Experience Level2/5
RemarksIt seemed large, which makes me think it could have been something else. It was probably half the size of a full moon, in terms of degrees covered. Please keep me updated if it turns out to be real! I can't believe my eyes.
Location
AddressWallingford, CT
Latitude41° 28' 32.1'' N (41.48°)
Longitude 72° 46' 52.58'' W (-72.78°)
Elevation103.21m
Time and Duration
Local Date & Time2017-11-23 02:00 EST
UT Date & Time2017-11-23 07:00 UT
Duration≈1.5s
Direction
Moving directionFrom up right to down left
Descent Angle251°
Moving
Facing azimuth90°
First azimuth130°
First elevation59°
Last azimuth70°
Last elevation46°
Brightness and color
Stellar Magnitude-15
ColorLight Green
Concurrent Sound
ObservationNo
Remarks-
Delayed Sound
ObservationNo
Remarks-
Persistent train
ObservationUnknown
Duration-
Length-
Remarks-
Terminal flash
ObservationNo
Remarks-
Fragmentation
ObservationYes
RemarksYellow sparks breaking off from the white/green head. Not really true fragmentation (similarly sized objects splitting and following the same rough trajectory). This is what makes me think it could have been a firework, but the angle, brightness, and speed were so different from anything I've ever seen before that I thought it might be real.