A stationary bright light that changed to blinking red/green on the corners before zipping away.

First there was a brilliant starburst shaped white light. I had no idea what I was looking at, couldn’t come up with any logical explanation. It appeared stationary but from my perspective it could have been moving toward me and I wouldn’t have been able to tell. Then all the light went out and was replaced by green blinking on the corners as it quickly zipped diagonally to the forward left (moving toward me) and then out of my eyeline. Which I know sounds like a plane but for how quickly it changed direction and moved across the sky in relation to how close it was to me and to the ground, I just don’t think it was. Too big to be a drone, it was silent so not a helicopter. Saw it out of my 3rd floor window at 6:06 AM EST, unobstructed view. It was higher than trees but not significantly. When it moved to the forward left it was probably within a mile radius of me, but I’m not an expert at gauging distance.