I saw a UFO for summer; a brief UFO visit

My name is PJ. I live in Farmington, New Mexico with my dog. On July 18, 2023, we experienced a "visit" from something completely unfamiliar to me; something we had never seen before, something apparently not of this world.
The day of July 18 passed like any other day until around 9:15 pm. It was late dusk, and my dog was outside sleeping by the front door. I was inside piddling around. Suddenly, the dog (who hardly ever barks) began furiously barking and snarling. My first thought was he was being attacked by a rabid animal, or something similar. I opened the door to see what was happening. The dog was looking skyward, snarling, barking, and snapping at the air.
Then I saw it. There in the sky in front of me, just a few hundred feet away, was some kind of metallic craft or vessel with bright lights on it, silently floating by. It was moving approximately 15 mph heading east, about 200 feet off the ground. It had no motor nor propeller; no visible means of propulsion. Its design was simply ladder-like in appearance; not like an A-frame type ladder but like a ladder with parallel legs. I could see the surface of the craft was made of what looked like brushed stainless steel. There were square and/or rectangular lights mounted along the sides and in the corners of each opening between the "rungs", and there seemed to be approximately thirty of these rungs. At the front or leading end of the object, the two parallel sides/legs came together and formed a point, but not a centered point, it was offset to one side. Mounted in the offset point was a round or oval-shaped light which was considerably larger and brighter than the other lights. The object was approximately 100 to 120 feet long and perhaps 12 to 15 feet wide.
I grabbed my cell phone and began preparing the camera to get a video. When I looked up again, it was gone. It just vanished; disappeared. Something worth mentioning: my dog was not looking at the airborne object but rather in another direction, as though something else had been there, and had obviously entered his personal space.
Though I was unable to get a photo of the thing, fortunately, I am an artist and can provide an illustration that shows exactly what it looked like; exactly what I saw that night. (See illustration)
Note: I am a 61-year-old college graduate and veteran; a man who doesn't make up stories. This report is true and based on actual events as they happened, so help me God. I feel compelled to make this report as a civic duty; to inform the public in case there is danger or peril in store for us in the near future. I don't want anybody saying I "should have said something". Well, I saw something, so I'm saying something. I just hope people are listening.
PJ
Farmington, NM