Reports Report 3210er (Event 3210-2017)

Observer
Name seth k
Experience Level 3/5
Remarks Was lying on couch in my living room, reading. Facing windowless wall, and TV, but with last double-window above me and slightly to my left. From this position, I'm only exposed to a fairly small vertical strip of sky, looking to the (roughly) SW, but it's quite close in my peripheral vision (maybe only 20 degrees or so from my focus, which was on my computer-screen). A bright movement caught my eye, and I looked up to see a bright and irregular light streaking down through the length of the vertical window. It was instantly obvious that it was something abnormal, but my immediate reaction was that it was something close and small. I immediately thought of some kind of firework, especially as the color seemed to flash to green after an instant. The flash seemed to broaden sideways for a moment, as it dropped, and then thinned again and dimmed, before disappearing. Hard to judge the duration of the flash, but I would guess it was ~2 to 3 seconds, as it traversed perhaps 20 degrees or so of the sky. Seemed like a firework of some kind, but I heard no bang, and neither heard nor saw any others. Occurred to me that it might possibly be a meteor, but the vivid green flash seemed so gaudy it felt like it must have been artificial. Then I thought, and realized that meteors do certainly show color at times, and I couldn't think of what the hell else it could've been. It freaked me out a tiny bit, especially at a moment in time when reasonable people can't help but think about ICBMs and such more than any time since Reagan. There was nothing else to do, so I made a note of the time, and then tried to forget it and go to sleep. Forgot about it till this evening when lying on the couch in the same position, and thought to search the web for any similar reports. Extremely gratified to see a hundred or so reports of what seems to be the same event. Very glad to know it wasn't either my imagination or just some stupid kid in my neighborhood. Super-cool website you have here. God bless the internet. Thanks for the validation and education.
Location
Address Cliffside Park, NJ
Latitude 40° 49' 37.12'' N (40.826978°)
Longitude 73° 58' 47.04'' W (-73.979732°)
Elevation 77.312m
Time and Duration
Local Date & Time 2017-09-17 00:55 EDT
UT Date & Time 2017-09-17 04:55 UT
Duration ≈3.5s
Direction
Moving direction From up left to down right
Descent Angle 173°
Moving
Facing azimuth 262.68°
First azimuth 247.95°
First elevation 40°
Last azimuth 18°
Last elevation 18°
Brightness and color
Stellar Magnitude -7
Color Light Green, White
Concurrent Sound
Observation No
Remarks -
Delayed Sound
Observation No
Remarks -
Persistent train
Observation No
Duration -
Length -
Remarks -
Terminal flash
Observation No
Remarks -
Fragmentation
Observation Unknown
Remarks -