Bright white perimeter of elongated rectangle with evenly spaced circular lights in middle

I was car camping next to the Mount Massive trailhead in Colorado (I was not high, given CO’s reputation) looking out the opening of my car window around 10pm when I saw this. I spoke out loud to myself “What the hell is that?” The object appeared in space but massive. I’ve never seen anything this big in space. There was no sound in the sky and definitely not a plane. It seemed longer than the diameter of a full moon. It was perfectly rectangular with the perimeter completely lit up with the brightest pure white. Inside the rectangle were perfectly spaced large circular lights in a single row. My guess is there were about 10 to 15 circles. It was traveling south just at the tip of the trees from my perspective. It was moving very steady like a satellite. It was definitely not starlink though the bright white is similar. At the tail end, not far from the rectangle was a less bright and smaller light that had a bit of a grayish aura around it. I saw it for about 30 seconds as it went behind the tree tops. After I saw it, this unusual calm and peace overfilled me, like a weight dissipated off my shoulders, and I smiled. The next day I debated telling anyone since I didn’t want anyone to think I had gone crazy. I finally told my sister and that went really well.